an unknown or unspecified person; some person
某人;有人
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there's someone at the door 有个人在敲门
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someone from the audience shouted out .观众中有个人大声喊叫。
a person of importance or authority
重要的人;有权力的人
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a small-time lawyer keen to be someone .不入流却又急于出人头地的律师。