短语
中文翻译：两次
同义词：
['twice', 'twice over']
例句：
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1.She ate the cake twice to make sure she liked it.
她吃了蛋糕两次，确保她喜欢。
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2.He repeated the instructions twice to make sure he understood them.
他重复了一遍指令，确保自己理解了。
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3.The teacher asked us to read the text twice before class.
老师要求我们在课前再读一遍课文。