名词
中文翻译：手臂
同义词：
['arm', 'forearm例句：1. He dropped his arm to the ground and sat down.（他放下手臂坐下。）']
例句：
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1. He dropped his arm to the ground and sat down.
他放下手臂坐下。
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2. She dropped her arm to protect herself from the cold wind.
她放下手臂以保护自己免受寒风的侵袭。
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3. The drop in temperature caused her arm to tingle.
温度的下降使她的手臂感到刺痛。