请问It's 2 meters long中的long作什么语法成分?

请问It's 2 meters long中的long作什么语法成分? 100 meters long中的long 请用It's two meters long 的句式造句 It's ten meters long's bridge.请问这句英文有错吗? 如果错了应该怎么改呢? It's about 3,400 meters long.同义句转换,每空一词.It's about ____ long it is 8346 meters long.同义句 It's one meter long.请问这里的 long 词性? ( ) is the clock?-It's fifty meters high.A.how long B.How ta 请问：it can be over 30 meters long汉语怎样翻译? it's a long time什么意思 It's a long time ( ).选什么? Hi Mary It's been a long time .语法填空