be the limit

(informal)be intolerably troublesome or irritating

(非正式)十分讨厌的，令人气恼的

off limits

out of bounds

禁止入内

they declared the site off limits.

他们宣布该地禁止入内。

there was no topic that was off limits for discussion.

没有什么禁止讨论的话题。

within limits

moderately; up to a point

适度地，在某范围内

without limit

with no restriction

没有限制