形容词
中文翻译：弱的
同义词：
['frail', 'feeble', 'powerless']
例句：
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1. The team's performance was weak in the crucial match.
该队在关键比赛中表现疲软。
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2. The old man is too weak to lift the heavy box.
那位老人太虚弱，无法举起那个沉重的箱子。
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3. Her health has been weak since she fell ill.
自从她生病以来，她的健康状况一直很虚弱。