誰知道be able to是什么意思

be able to: [ bi:'eiblt? ] 會(huì),能v. 能夠例句:

1. Will you be able to glance over my report before I send it to the committee? 在我把這份報(bào)告送到委員會(huì)之前, 你能粗略地看一下嗎?

2. Unless you change your mind (=If you don't change you mind), I won't be able to help you. 除非你改變你的想法，否則我不能幫助你。

3. It took him three months to be able to run a mile. 要能跑一英里需要他三個(gè)月。

4.You'll be able to come, won't you? 你能來的，對(duì)嗎?。