Cassegrainian
n. 卡塞格伦望远镜(亦作Cassegrain telescope)
🗣️ 情景例句
Yes, Mom was pregnant with Robbie then,
是的， 那时妈妈怀着Robbie，
He seldom came to see his wife, did he?
她不来看他妻子，是这样吗？
How do you do?
您好！