1. 釋義：激烈的；殘酷無情的；不擇手段的

2.同義替換： fierce= tough= severe= relentless

3. 例句：

就像很多在線商業(yè)一樣，打車行業(yè)的競爭是冷酷無情的，贏者通吃的市場：滴滴本身就是2015年兩個本地公司合并的產(chǎn)物。

Ride-hailing, like many online businesses, is a?cut-throat, winner-takes-all market: Didi itself is the product of a 2015 merger of two local firms.

4. 造句：

在這個競爭激烈的世界，只有適者才能生存。?

In this world full of cut-throat competition, only the fittest can survive.

參考：?In this cut-throat world, only the fittest will survive/prevail.

新聞行業(yè)的競爭會相當(dāng)殘酷。

The journalism can be a very cut-throat business.