It isn’t worth the trouble.这个句子是什么结构 前面三个词 分别是主系表 那 trouble？做什么成分

It isn't worth liking 是什么意思? It isn't worth it 中为什么后面要加it?而不是It isn't worth 是it doesn't worth five pounds 还是it isn't worth five pounds?为什么 But that's not worth ..isn't it? 这句话里的JUST的位置有没问题IT JUST ISN'T WORTH IT what is the ___of the book? ----ten yuan. i think the book is of little___.it isn't worth so mucha price worth b cost price c worth cost d price worthy I,m the best ,isn,t it? It wasn't worth “It wasn't worth it” no,it isn't isn't it nice say it isn`t It isn't worth waiting for him,请帮我翻译下啊…谢谢 It isn’t worth the trouble.这个句子是什么结构 前面三个词 分别是主系表 那 trouble？做什么成分 The book isn't worth reading.You should choose a m____ one. Isn't it strange that the lazy boy这里Isn't it 是什么用法? -the sun isn't round,is it?-_____a.yes,it isn't b.no,it is c.yes,it is d.no,it isn't If he isn't worth it now he's not going to be worth it a year or 10 years from now.怎么翻译 急 This watch isn't worth 100 pounds at 明白?