toil

The Great Pyramid of Giza was built through the backbreaking toil of thousands of workers.

(Chinese) 吉萨大金字塔是通过成千上万名工人艰苦卓绝的辛劳建造而成的。

After thirty years of toil in the coal mines, his lungs were severely damaged.

(Chinese) 在煤矿辛苦劳作三十年后，他的肺部受到了严重损伤。

The farmers toiled in the sun-scorched fields from sunrise until long after sunset.

(Chinese) 农民们从日出到日落后很久都在烈日暴晒的田地里辛勤劳作。

She is still toiling away at her PhD thesis, spending every weekend in the library.

(Chinese) 她仍在埋头苦干她的博士论文，每个周末都泡在图书馆里。