overstep /ˌəʊvəˈstɛp/ ( overstepping, overstepped, oversteps )

• 1. 

  V-T If you say that someone oversteps the limits of a system or situation, you mean that they do something that is not allowed or is not acceptable. 超越

  例：

  The commission is sensitive to accusations that it is overstepping its authority.

  该委员会对自己越权的指责很敏感。

• 2. 

  PHRASE If someone oversteps the mark, they behave in a way that is considered unacceptable. 出格 [英国英语]

  例：

  He has overstepped the mark, and it must stop.

  他言行出格，必须制止。

  例：

  Sometimes, I think the administration steps over the line when they make these kinds of accusations.

  有时候，我认为行政部门在发出这类指责时，他们已经出格了。