Meaning of jiān kǔ:
jiān kǔ
艰苦
Adjective
difficult; hard; arduous
Tā zài xiāngxià guòzhe jiānkǔ de shēnghuó.
他在乡下过着艰苦的生活。
He lives a difficult life in the countryside.
Tāmen tōngguò jiānkǔ de nǔlì shíxiànle mùbiāo.
他们通过艰苦的努力实现了目标。
They achieved their goal through hard work.
Tā zài nóng cūn jīng lì le yī gè fēi cháng jiān kǔ de tóng nián.
他在农村经历了一个非常艰苦的童年。
He experienced a very arduous childhood in the countryside.