那些工人都是苦力。
nèixiē gōngrén dūshì kǔlì 。
Those workers are all coolies.
在历史上，苦力往往面临艰苦的生活条件。
zài lìshǐ shàng ， kǔlì wǎngwǎng miànlín jiānkǔ de shēnghuó tiáojiàn 。
In history, coolies often faced harsh living conditions.
他为了养家只好做苦力。
tā wèile yǎngjiā zhǐhǎo zuò kǔlì 。
He has no choice but to do hard labor to support his family.