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?