endeavor

The scientist's life-long endeavor was to find a sustainable source of clean energy for the planet.

(Chinese) 这位科学家毕生的努力就是为地球寻找一种可持续的清洁能源。

Climbing Mount Everest is a dangerous endeavor that requires months of physical preparation.

(Chinese) 攀登珠穆朗玛峰是一项危险的尝试，需要数月的体能准备。