It is incumbent on me to reclaim him.
劝他改过是我义

的义务。
It is incumbent on me to reclaim him.
劝他改过是我义

的义务。
It is incumbent upon us to do so.
这样做是我们义

的
。
It's incumbent on you to advise your son before he leaves home.
你儿子离家前
他忠告是你义

的事。
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亦
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