That's the translation I've been using and it hasn't caused me to lose hearts so far.
When we say "ums" and mean "around", do we mean around as in, in this general area or around as in "he went around the corner" and "he went around the perimeter". They're two slightly different meanings.
Am I correct? - When a phrase defines directed action, we use akkusativ, and when it defines some state with no direction, we use dativ. (?) Like "Die Katze spielt auf dem Tisch" is dativ and ''Die Katze läuft auf den Tisch" is akkusativ. Then, "Die Maus läuft ums Glas" has a direction, so in this case it means the same as 'around the corner', I guess..
@skmp : Correct, use accusative for movement, dative for expressing location.
No, this is only true for certain prepositions. Bis, durch, für, gegen, ohne, um always take Akkusativ.
I may not have this 100% straight, but I think that I do. What you're saying is true for two-way prepositions. At the beginning of this unit, you can find which ones are which. There are a set of prepositions which always take dative, and there are a set of prepositions which always take accusative. Additionally, there are a set of so-called "two-way" prepositions which meet the criteria which you're specifying. These prepositions take dative if there is no movement (die Katze spielt auf dem Tisch (the cat plays on the table)) or if there is movement within a location without shifting to another location (Die Katze läuft auf dem Tisch (the cat walks on the table (perhaps from one end to the other))), and they take accusative if there is movement from one location to another (Die Katze läuft auf den Tisch (the cat walks onTO the table (perhaps from the arm of a chair))
Doesn't "laufen" mean "to run", not "to walk" ? I've spoken with a native German and he uses "gehen" for "to walk" and "laufen" for "to run" ....
Laufen - to run or walk on foot Gehen - to walk or to go Rennen - to run or to race
I believe usage varies but I was taught, and would normally use the words just like your friend
Me too, I´ll report it!. I think it makes more sense to say the mouse is moving around the glass, than the mouse is WALKING to the glass LoL :)
In English, "the glass" is an object, most likely a drinking glass, but possibly a mirror. "Glass" without "the" means the substance glass - you can say that an object is "made of glass."
In English 'the mouse runs round the glass' means exactly the same as 'the mouse runs around the glass'. Why is it marked wrong?
Because somebody forgot to add it as a correct translation. It is always best to let Duolingo know that you think that your answer is correct, and then they can add it to the list of correct translations, if they agree with you.
.. "round" is "runde" in german, which is clearly in this sentence, that's why.