cometic

常见例句

• That comet is invisible to the unaided eye.
  那颗彗星只用肉眼是看不到的。
• A comet is at perihelion when it is closest (=very close) to the sun.
  彗星最接近太阳时，它就是在近日点。
• If I had binoculars, I could see that comet clearly.
  如果我有望远镜，我就可以清楚地看见那颗彗星。
• The comet's ice, heated by the sun, rapidly and spectacular sublimate to gas.
  彗星上的冰块在太阳热的作用下迅速而壮观地升华成气体。
• The central portion of the head of a comet.
  彗核彗星头部的中心部分
• Why else might the comet have come undone?
  是什么导致了慧星的灭亡?
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