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.
例句
The Commission is sensitive to accusations that it is overstepping its authority...該委員會(huì)對(duì)認(rèn)為其越權(quán)的指責(zé)頗為敏感。In male company, perhaps he did overstep the bounds of propriety.在清一色男性的公司里，可能他的舉止確實(shí)有失得體。
英英詞典釋義
Verb
1. pass beyond (limits or boundaries)
2. go beyond;
"She exceeded our expectations""She topped her performance of last year"