as much as, or more than, a number or amount

It will cost at least $100. 那个东西至少要花100美元。

It will be £200 at the very least. 那东西最少也要200镑。

You'll have to wait at least an hour. 你至少要等一个小时。

used to reduce the effect of a statement

I've met the president - at least, he shook my hand once. 我见到总统了——不管怎样他和我握了一下手。

Synonym: leastways

used to emphasize that something is good in a bad situation

It's a small house but at least there's a garden. 那是一座小房子，但不管怎么说还有一个花园呢。

used to say that someone should do something small, even if they do nothing else

Even if she didn't want to send a present, she could at least have sent a card. 即使不想送礼物，她起码也应该寄一张贺卡。