cutthroat

競爭激烈的、割喉式的

The smartphone market is cutthroat, and margins keep shrinking every year.

智慧型手機市場競爭激烈，利潤每年都在縮水。

殘酷無情的、不留情的

He rose to the top using cutthroat tactics that ruined his colleagues.

他靠著毫不留情的手段爬到高層，害慘了同事。

兇手、殺人犯舊式

The alley was said to be full of thieves and cutthroats.

據說那條巷子裡滿是小偷和殺人犯。