He viewed his mission in life as protecting the weak from the evil.

他把保护弱者不受坏人伤害看作自己一生的使命。

《柯林斯英汉双解大词典》

Her mission in life was to work with the homeless.

她以帮助无家可归者为己任。

《牛津词典》

Each of us has a special mission in life.

我们每个人都在生活中的特殊使命。

youdao

He did so because his philosophy, informed by his economics, was his mission in life.

FORBES: Magazine Article

So it's now her mission in life to ensure the police take stalkers more seriously.

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For monasteries business is a critical subset of their mission in life: not the mission itself.

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