1. 竞争激烈的;残酷无情的
If you describe a situation as cut-throat, you mean that the people or companies involved all want success and do not care if they harm each other in getting it.
e.g. ...the cut-throat competition in personal computers.
个人电脑市场上残酷无情的竞争
e.g. ...the cut-throat world of international finance.
竞争激烈的国际金融界