艰苦工作

[jiān kǔ gōng zuò]

• yakka
• toil on

例句

1. 他下苦功思考这一新观点，经过长时间的艰苦工作，写了一篇论文，对此进行阐述。
   He fell upon the new idea and after a long time of hard work wrote an important paper on it.
2. 所有这些艰苦工作正在他身上显示出来。
   All these hard works are telling on him.