精疲力竭

经过连续二十多个小时的高强度抢险作业，战士们累得精疲力竭。

jīng guò lián xù èr shí duō gè xiǎo shí de gāo qiáng dù qiǎng xiǎn zuò yè, zhàn shì men lèi dé jīng pí lì jié.

After more than 20 consecutive hours of high-intensity rescue operations, the soldiers were exhausted.