fatal

The blow was fatal to him.

这个打击对他来讲是致命的。

The fatal eruption of the volcano destroyed the Pompeii city.

火山致命性的喷发毁灭了庞贝城。

He suffered a fatal heart attack.

他遭受了致命的心脏病发作。

The disease can be fatal if untreated.

如果不治疗，这种疾病可能是致命的。

One small mistake proved fatal.

一个小错误证明是致命的。