undulates

例句:

• The countryside undulates pleasantly.
  原野起伏，景色宜人。
  
• The road undulates through pleasant scenery.
  那条道路在宜人的景色中延绵起伏.
  
• The transaction estimate, dollar will exchange the Renminbi further to fall, undulates to 7.7730 - 7.7760 Yuan sectors.
  交易员预计, 美元兑人民币将进一步下跌, 波动于7.7730-7.7760元的区间.
  
• Behind her a sheer white curtain undulates from a gust of wind, and she adds, If no one does anything, our heritage will be lost.
  来自WSJ
• Apparently satisfied, the leathery old matriarch taps the side of her head, points at my face and undulates away.
  来自BBC