现在完成时中,already和yet都可以表示“已经”的意思。
两者区别主要如下:
already用于肯定句,放在句中或句尾。
如:I've already been there twice.
= I've been there twice already.
我已经去过那里两次了。
yet用于否定句或疑问句中,放在句尾。
如:I haven't finished reading the book yet.
我还没有读完那本书。
Have the children come back home yet?
孩子们回家了吗?