comet
n. 【天】彗星， 彗形物；【航空】彗星机
comet finder [seeker]
观察彗星用的一种望远镜， 寻彗镜
comet wine
(彗星出现年酿造的)醇美的葡萄酒
We can see comets only when they come close to the earth.
只有当彗星接近地球时,我们才能看得见它们。
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。
Comets move around the sun like planets, but in long oval course.
彗星象行星一样绕太阳运转，然而其轨道呈狭长的椭圆形。
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。
Their memory wasn't very good when it came to recalling other things, but they remembered the comet.
一谈到别的事情时，他们的记性并不是很好，但他们却记得彗星。
名复：comets
cometary,cometic
adj. 彗星（状）的
comet of Neptune family
海（王）族彗星
telescopic comet
望远镜观察到的彗星
comet of Uranus family
天（王）族彗星
comet of Saturn family
土族彗星
short-period comets
短周期彗星