fatal

The snake's venom is fatal to humans if an antidote is not given immediately.

(Chinese) 如果不立即注射抗毒血清，这种蛇的毒液对人类是致命的。

The mountain climber suffered a fatal fall during his attempt to reach the peak.

(Chinese) 那名登山者在试图登顶的过程中不幸坠落身亡。

The software engineer discovered a fatal error in the code that crashed the entire server.

(Chinese) 软件工程师在代码中发现了一个导致整个服务器崩溃的致命错误。

Choosing the wrong location for the new factory was a fatal blow to the company's expansion.

(Chinese) 为新工厂选错地址对公司的扩张计划是一个毁灭性的打击。