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undulate的现在完成时为：undulated...
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undulate的一般过去时为：undulated...
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undulate的音标：undulate的英式发音音标为：['ʌndjuleɪt]undulate的美式发音音标为：['ʌndʒəleɪt]...
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undulate的第三人称单数（三单）为：undulates...
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As we travel south, the countryside begins to undulate as the rolling hills sweep down to the riverbanks.我们一路南行，乡间开始变得起伏不平，绵延的山峦一直延伸到河岸。To undulate more freely, keep you hands about shoulder width apart.要波动的更自由些, 保持你的手与肩...
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undulate的现在进行时为：undulating...
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As we travel south, the countryside begins to undulate as the rolling hills sweep down to the riverbanks.我们一路南行，乡间开始变得起伏不平，绵延的山峦一直延伸到河岸。To undulate more freely, keep you hands about shoulder width apart.要波动的更自由些, 保持你的手与肩...