(informal)be intolerably troublesome or irritating
(非正式)十分讨厌的，令人气恼的
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。
moderately; up to a point
适度地，在某范围内
with no restriction
没有限制