Comets

常見例句

• Comets move around the sun like planets, but in long oval course.
  彗星象行星一樣繞太陽(yáng)運(yùn)轉(zhuǎn)，然而其軌道呈狹長(zhǎng)的橢圓形。
• That comet is invisible to the unaided eye.
  那顆彗星只用肉眼是看不到的。
• We can see comets only when they come close to the earth.
  只有當(dāng)彗星接近地球時(shí),我們才能看得見它們。
• A comet is at perihelion when it is closest (=very close) to the sun.
  彗星最接近太陽(yáng)時(shí)，它就是在近日點(diǎn)。
• If I had binoculars, I could see that comet clearly.
  如果我有望遠(yuǎn)鏡，我就可以清楚地看見那顆彗星。
• The comet's ice, heated by the sun, rapidly and spectacular sublimate to gas.
  彗星上的冰塊在太陽(yáng)熱的作用下迅速而壯觀地升華成氣體。
返回 Comets