aux.“can”的过去式,能够，打算,用于假设语气的条件句,用于虚拟语气的结论句
He could just about see the little man behind the counter.
他勉强能看到柜台后面的小个子男人。
So, if we could just move onto something else?
那么我们可不可以干脆谈点别的？
Northbridge is a cool, calculating and clever criminal who could strike again.
诺思布里奇是个头脑冷静、诡计多端、阴险狡诈的罪犯，他可能还会犯案。