could
[kJd]
v.
動(dòng)詞 can 的過去式
I could run faster then.
我那時(shí)能跑得更快一些.
（表示與事實(shí)相反的設(shè)想）能；可以
I could come tomorrow if you like.
如果你愿意,明天我可以來.
（委婉語）能
Could you do sth.for me?
你能替我做件事情嗎?
應(yīng)該
You could at least have met me at the station.
你至少應(yīng)該到車站來接我.
可能
I wrote down the number so that I could remember it.
我寫下了號(hào)碼,那樣我就能記住它了.
could
[kud]
v.,aux.
[can的過去式]
〔常用于從句中〕（過去、當(dāng)時(shí)）能夠,得以
〔用于虛擬語氣中,表示相反的假設(shè)〕能,本來可以
〔表示可能性〕能,可能,可以
〔用于委婉語氣〕能,可以
We could see the oil bleeding out from the joint.
(那時(shí))我們可以看出油從接縫處滲出.
It was so dark that we could see nothing.
天太暗了,我們什么也看不見.
If I could go with you,I should feel very glad.
假如我能同你們一起去,我會(huì)感到非常高興.
You could have been more considerate.
你本來可以更慎重些.
If you tried,you could do the work better.
如果你試試的話,準(zhǔn)能把那項(xiàng)工作干得更好.
C-I borrow your thermos?
我可以借用你的暖水瓶嗎?
xiguanyongyu:could not (help)but
不能不
who could have
誰〔沒人〕會(huì)
nobody could have
誰〔沒人〕會(huì)