我们使用了一台非常强大的望远镜来观察夜空。

We used a very powerful ___telescope to observe the night sky.

他喜欢在晴朗的夜晚用他的望远镜观星。

He enjoys stargazing with his ___telescope on clear nights.

一台好的望远镜可以揭示肉眼看不见的行星细节。

A good ___telescope can reveal details of planets that are invisible to the naked eye.