第三人称单数：corrugates 现在分词：corrugating 过去分词：corrugated
1.(使)成波状;使起皱纹;制成波形;揉皱
1.起皱的,波状的,有沟纹的
1.to fold into parallel ridges and troughs, or fold something such as a sheet of cardboard into parallel ridges and troughs
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