Sca
abbr. 美国科学俱乐部联合会（Science Clubs of America）
🗣️ 情景例句
Dreadful weather, don't you think?
天气可真差劲，你说呢？
I have an interview next week.
我下周要参加考试。
and if a single curved glass would distort nature, how much more would a pair of them?
何况一片曲面镜就可歪曲自然，那么伽利略的两片曲面镜对自然的歪曲又该多大呢？