疲惫不堪

经过连续多天的紧急搜救工作，搜救人员虽然疲惫不堪，但依然咬牙坚守。

jīng guò lián xù duō tiān de jǐn jí sōu jiù gōng zuò, sōu jiù rén yuán suī rán pí bèi bù kān, dàn yī rán yǎo yá jiān shǒu.

After many days of emergency search and rescue work, although the search and rescue personnel were exhausted, they still gritted their teeth and persevered.