Cassegrain
n. 卡塞格伦望远镜(亦作Cassegrain telescope)
🗣️ 情景例句
When will this time draft fall due?
期票什么时候到期？
He's a very hard man to please.
他是一个很难讨好的人。
Then Von Frisch moved the dish to the east of the hive and waited for a marked bee to feed.
然后，冯·弗里施把碟子移到蜂箱的西边，等待有标记的蜜蜂来吃。