筋疲力尽

经过长达八个小时的重装高原山地负重越野，战士们累得筋疲力尽，躺在草甸上几乎无法动弹。

jīng guò zhǎng dá bā gè xiǎo shí de zhòng zhuāng gāo yuán shān dì fù zhòng yuè yě, zhàn shì men lèi dé jīn pí lì jìn, tǎng zài cǎo diān shàng jī hū wú fǎ dòng tán.

After eight hours of heavy-loaded cross-country travel in plateau mountains, the soldiers were so exhausted that they lay on the meadow and could hardly move.