I went through the course to unlock it, so this was the first time I ever saw that word. I agree with you, StampyTurtle, that it doesn't belong in a language course.
Edit: I can't see why someone would disagree on this, and so much that they even press the "negative feedback arrow" on my post. Perhaps my message was not clear enough, so I'll try to explain better: Going through a course to unlock it, means that you have to answer many questions in a row, with very few errors, to advance to a higher level at once. You can do this if you wish to get to more advanced levels for a language you are already a bit familiar with. If you then meet the word "duo" for the first time ever, you have no use of your previous knowledge, from school, since it's a word that doesn't exist in the literature.
Yes. Also "you're welcome" and "here you go".
The basic meaning of bitten is "ask" and the connection with all these polite requests is like that as well:
"Do something for me, please" = I ask you do to it.
"Pardon?" = I ask you to say that again
"You're welcome." = I ask you not to mention it
"Here you go." = I ask you to acknowledge what I have given you
If it helps to have examples: When I went to Germany I think I heard it most as responses for expected acts. Like restaurant settings - the server brings your meal, you acknowledge/thank them, they'd leave with a "Bitte schön!"
Gern Geschehen is a more formal-sounding response. Like to "My pleasure".
Bitte has so so so many different meanings. When you tap your finger over the word in the sentence it gives you the meanings so you can understand what it means but for me that sentence could've been two different ways and it would've made sense you could say yes please do well or you could say yes you're welcome duo and it would make total sense either way. So in this case they probably wanted yes please, do well but if I had said yes, you are welcome duo would that have been accepted by the program? Would that also be something? And because it has so incredibly many meanings, how in the hell would you know if you were needing to say yes please, or yes you are welcome to that person because those are both equally usable sentences that to the ear sound like they could both somatically go like it make sense to say yes you are welcome Sam and it also makes sense to say yes please Sam but they mean totally different things so I don't understand how that word could mean both things when they are not even the same thing like hat means hat it doesn't mean hat and snake and wall and picture frame it just means hat. The thing you put on your head. not a wall not a snake not a picture frame just hat. and if you want to tell somebody you're putting on your hat you would not use a word that means interchangeably as picture frame or wall or snake. but I don't know why you would have a word that interchangeably means both wall, hat, picture frame, snake that does make any sense why you would have such uncommon unrelated not even the same thing words all lumped under one term like hat hat is a thing you put on your head a snake you would not put on your head you would not want it on your head you would not want to picture frame on your head because the glass might break and crack your head open you don't want to wall on your head that's too heavy and it would crush your skull why would you put those on your head you would not use a word meaning something on your head as interchangeably wall or snake or picture frame that is a make any sense so to me bitte it's the same exact thing here why would it mean you are welcome please are you okay those things are not the same and if I saw that in a sentence being that I'm a new learner of German I would probably assume that meant please and I would probably not understand the context of the sentence if it was intending to say are you okay because I would think please would not fit in that context I would not understand it to be are you okay so how would you know when it means something different than please such as you are welcome or are you okay or something like that because those are such different words I guess you could read it in the context of the sentence I guess whereas you wouldn't want to say please in the context of the sentence sometimes it would make sense for you to have to kind of fill out the context and try to figure out what other thing might make better sense than that but that would be kind of complicated and take up way too much time than is necessary just for that like English is not like that I don't imagine like you wouldn't have one word that means so many different unrelated things like are you okay please you are welcome I am sorry you know those don't make any sense as being close to each other because they're not I don't mean at all the same thing so in English you would have all those separate words or phrases being separate. you would not lump those together I wouldn't think. this is one way that German confuses me because he wouldn't do that in English now sure you have certain things that people are confused about when they are trying to translate to English they will say well could I not use this or can I not use this to say the same thing because good and well kind of the same they kinda mean the same and so people wonder could I not interchangeably use good and well in the same sentence there and sometimes yes and sometimes no but in this case it's different how does this word bitte mean five different phrases that are not related to each other not even closely how do you know when to use them correctly because I was understanding it to mean please but I found out it means five different things please you're welcome are you okay or how are you or something and those are not close
There are different kinds of exercises on Duolingo.
Sometimes you have to translate a written sentence; sometimes you have to listen to some text in German and write down the German words that you heard; sometimes you have to pick out the correct answers from a mixture of correct and incorrect options; and so on.
It should usually say at the top of each exercise what it expects you to do.