动词短语
中文翻译：Unknown
同义词：
['stand up', 'respond', 'address', 'confront', 'tackle']
例句：
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1. She answeredthe door and introduced herself to the guest.
她开门迎接客人，并自我介绍。
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2.The teacher asked the students to answer up in class.
老师要求学生们在课堂上回答问题。
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3.He answered up to the challenge and won the game.
他勇敢地接受了挑战，赢得了比赛。