那根裸露的高压电线是个致命的寡妇制造者。

The exposed high-voltage wire is a deadly ___widow-maker.

伐木工人在砍伐前仔细检查树木上是否有危险的断枝。

The logger carefully scanned the trees for any ___widow-makers before cutting.

狙击手被称为战场上的寡妇制造者，因为他们的射击极其致命。

Snipers are known as the ___widow-makers on the battlefield due to their deadly accuracy.