尽力而为 do one's best
Explanation
尽力而为，意思是付出全部力量去做某事，竭尽全力。
Jinli er wei means to do something with all one's strength; to do one's best.
Origin Story
从前，在一个小山村里，住着一位名叫阿牛的年轻人。他勤劳善良，心地淳朴。村里有一块荒地，多年无人耕种，杂草丛生。阿牛决定将这块荒地开垦出来，种上庄稼。他每天起早贪黑，挥汗如雨，辛勤劳作。他先清理杂草，然后翻土松地，再播种施肥。他经历了风吹雨打，烈日暴晒，也从未放弃过。他总是尽力而为，将所有的精力都投入到这块土地的耕耘中。最终，荒地变成了丰收的良田，阿牛也收获了累累硕果。他用自己的辛勤劳动和尽力而为的精神，改变了自己的命运，也为村里增添了新的希望。
Once upon a time, in a small mountain village, there lived a young man named Aniu. He was diligent, kind, and pure-hearted. There was a piece of wasteland in the village that had been uncultivated for many years and overgrown with weeds. Aniu decided to reclaim this wasteland and plant crops. He worked hard every day, from early morning till late at night, sweating profusely. He first cleared the weeds, then turned the soil, and then planted seeds and fertilized. He went through wind and rain, and scorching sun, but never gave up. He always did his best, putting all his energy into cultivating this land. In the end, the wasteland was transformed into a rich field, and Aniu reaped a bountiful harvest. With his hard work and his spirit of doing his best, he changed his own destiny and also added new hope to the village.
Usage
形容做事尽心尽力，全力以赴。
This idiom is used to describe doing something with full effort and all one's might.
Examples
-
这次考试，我尽力而为了，结果还不错。
zheci kaoshi, wo jinli er wei le, jieguo haibucuo.
I did my best in this exam, and the result was pretty good.
-
面对困难，我们应该尽力而为，而不是轻言放弃。
mianduikunnanzhe, women yinggai jinli er wei, er bushi qingyan fangqi
In the face of difficulties, we should do our best instead of giving up easily.