| 释义 |
DEFINITIVE EXAMPLES 权威例句〔undulate〕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。柯林斯高阶〔undulate〕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。外研社新世纪 |