[nǔ lì]
[动]
make great efforts; try hard; exert oneself
work hard
努力工作
exert oneself to accomplish one's assignment
努力完成任务
make an effort
尽一番努力
do one's utmost; do the best one can
尽最大努力
His efforts at solving the problem failed.
他企图解决这一问题的努力失败了。
We should exert ourselves in the struggle for the modernization of science and technology.
我们应为实现科学技术现代化而努力。