uphill and downhill

基本解释

• 上上下下

英汉例句

双语例句

• Uphill and downhill should be done once.
  上坡和下坡应当各做一次。
• Participants should have basic cycling knowledge and ensure that they can control the bicycles properly during uphill and downhill.
  参加者应懂得基本驾驶单车技术，能掌握上斜和落斜之技术。
• SOMETIMES the financial system can appear like one of those Escher drawings in which water flows simultaneously uphill and downhill.
  有时，金融系统的表现类似于埃舍尔绘画（如上图），画中流水同时既向上流，又向下流。

权威例句

• She and Lei could have ended their marriage on a balcony like this—on a mild day during the snow season, their last shared memories the white mountains close by, the ski lifts moving tirelessly and smoothly uphill and downhill, and small colorful dots sliding down the slopes: actions viewed from afar.
  NEWYORKER: Alone

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