undulations ![添加此单词到默认生词本](http://www.dict.li/user/images/new_vocabulary.gif)
n. 起伏不定;波动(undulation的复数)
- In columns rise and fall to the undulations of the ground,
纵队起伏哪怕灰壕泥波弄脏咱的身, - These undulations are easiest to understand from the vantage point of the satellite.
从卫星的角度来看,很容易理解这些波纹的出现。 - UnDuLaTiOnS, The - Post-Modern Swing. History, recordings, audio samples, news, calendar, biographies, member biographies.
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