Why can't I say "My neighbors have bought a bike?" - when someone is a "biker", they ride a "bike" (motorcycle); and when someone is a "cyclist", they ride a "bicycle".... I believe that the word "bike" is used way more frequently than "motorbike" or "motorcycle"... although, it, indeed can mean both a bicycle and a motorcycle...
I'm not a course contributor, so can't say what they will decide, but for me any sentence that uses colloquial „motor”(instead of „motocykl”), should accept colloquial English 'bike'. ;)
Edit: and it's added now. :)
so is there some kind of rule when two vowels become a diphthong and when they don't?
only i+vowel is not two separate vowels. all the others are pronounced separately.
ia ie iu io ió - "i" softens the consonant before it or sounds like "j". I think they work a bit like their Russian equivalents.
yea that makes sense, but what about words like restauracja, Europa, autobus
p.s. why do you always write vovel and not vowel?
vowel I have no idea, I somehow learned it wrong
oh, I forgot about those, those "u" are not vowels, but consonants. You may need to check dictionary with those, if they are of foreign origin au, ou are in one syllable (u is consonant which sounds like "ł") if they are native "na-u-ka" they are pronounced separately.
its "ia" - i softens "n", but can't soften r so
something bettween u-ńa or u-ńja and something like hi-sto-rja
Fun fact - Maria is pronounced Ma-rja, but The Holy Mary is Maryja=Ma-ry-ja - which is closer to Latin pronounciation, with 3 syllables.
"i" palatalizes preceding consonant but it is also pronounced itself and after it there is "a". There is no glottal stop.
yes hi-sto-ria, ge-o-gra-fia, bio-lo-gia, ge-o-lo-gia, fi-lo-lo-gia, fi-lo-zo-fia itp.
I don't think so, but maybe there is something that doesn't come to my mind right now.