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。
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。
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。
