Duplexity
二重性
🗣️ 情景例句
I didn't even finish it.
没有能吃完它。
What's the capital of your country?
贵国首都是哪儿？
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？