comet rs tail的用法和樣例：
例句
- Atoms could be repelled by sunlight, sufficient extent to account for the long comet tails we observe.
原子會受到太陽光的斥力作用，其程度足以形成我們所觀測到的很長的彗尾。 - Reports even have the tail visible just above the horizon after sunset for many northern observers as well.
由許多北半球的觀測報告指出，在太陽下山後的地平線附近也可以看得到彗尾。
