有些一般疑问句以 can 和could 的开头,这两者有区别吗?》一个是现在式,一个是过去式
比如can you carry some water for them?换成
could you carry some water for them?
可以吗?句意没变吧?
有些一般疑问句以 can 和could 的开头,这两者有区别吗?》一个是现在式,一个是过去式
比如can you carry some water for them?换成
could you carry some water for them?
可以吗?句意没变吧?
你说的“一个是现在时,一个是过去时”(注意不要混淆过去时和过去式)是对的,但是只对了一半。
could you carry some water for them? 和 can you carry some water for them? 其实意思一样。用could比can更客气,更礼貌。