老师好！请教新目标八上教材中的一句话:But I think friends are like books—you don't need a lot of them
as long as they're good.请问老师，这里a lot of them 不能是“许多它们”吧？那这里是表示部分和整体关系, 类似one of...之类的吗？
前面有网友提了一个问题涉及the summer where：https://www.cpsenglish.com/question/60108碰巧我这里也碰到一个：I suppose it must be pretty hot in the summer where you come from. 请问也是一样的理解吗？好像不通啊！
...tion results until Joe Biden could announce this.The people
of this nation have spoken: they've delivered us a clear victory.请教老师：It took
four days of uncertain election results until Joe Biden could announce this.是否等同于：It didn't
take four days of certain election results until...
False theories can yield true results, so even if an experiment works, it doesn’t prove that the theory it was designed to test it is true.请问老师 句子中的这个it 充当什么成分？如果去掉这个it， 意思和原来的句子一样吗？
Given that many people's moods are regulated by the chemical action of
chocolate, it was probably only a matter of time before somebody made the
chocolate shop similar to a drugstore of Chinese medicine.
...a long goatee pointing down like a compass needle. It was the sort of face that age would lend roundness, but not necessarily kindness.请问这两个句子是什么意思？语法结构是什么？