第1个回答 2022-11-16
可替换成: be able to (do sth. ), be capable of (doing sth.)
如: Most children are able to walk before they are able to talk.
= Most children can walk before they can talk.
多数孩子在会说话前就会走路.
He is capable of running a mile in four minutes.
=He can run a mile in four minutes.
他能用四分钟跑一英里.