起伏

• The house stands in 500 acres of rolling parkland .
  那所房子周围有500亩起伏的公共用地。
• The foothills began as gentle rolls in the plain .
  大平原上起初地势偶尔有些平缓的起伏。
• I felt oddly oppressed with my memories .
  许多往事在我的脑海中起伏，使我感到莫名的苦恼。
• The date are quite "lumpy. "
  这些数据起伏很大。
• The mountain ranges rise and fall .
  山峦起伏。
• Both the light and radio outputs fluctuate markedly .
  光和无线电的输出都引人注目地起伏变化。
• His eyes were back on the faint pulsing movement in the chest .
  他再度注意着胸部轻微的起伏动作。
• There is less demand for alarms in open rolling terrain .
  开阔的丘陵起伏区对报警器的需要程度较小。
• Emotion prevented her from completing either sentence .
  她的感情起伏得太厉害，因此两句话都没有说完。
• Vast and irregular plains of ice stretched out in every direction .
  唯见延绵不绝，高低起伏的一片冰洲。