这个行业的竞争非常残酷，许多小公司都被淘汰了。

The ___cutthroat competition in this industry has driven many small companies out of business.

在商业领域，他是一个不惜踩着别人往上爬的冷酷竞争者。

In the business world, he's known as a ruthless ___cutthroat who climbs the ladder at others' expense.

那个强盗从腰间拔出一把锋利的杀喉刀。

The robber drew a sharp ___cutthroat from his belt.