concave-down

常见例句

• Have a glass of beer to rinse your dinner down.
  喝杯啤酒把你吃的晚饭冲下去。
• The machine must break down at this busy hour.
  正忙的时候，机器偏偏又坏了。
• The old man stared the uninvited guest up and down.
  老人把不速之客上下打量了一番。
• His figure looks very funny in the concave mirror.
  他的样子在凹镜里显得非常可笑。
• An indented or concave surface or area.
  凹陷，洼地凹的表面或地区
• He let himself down slowly by means of a tope.
  他借助一根绳子慢慢地下来了。
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