mission/'mɪ∫ən/

n. an important task that sb is sent somewhere to do

n. [C] 使命，任务：Our mission is to protect the natural and cultural resources of the tribe. 我们的任务是保护这个部落的自然和文化资源。

构词mis(=-mit-派遣) + sion

音组-ssion/-∫ən/

admission; discussion; mission; permission