Kovalev
n. (Kovalev)人名；(俄)科瓦廖夫
🗣️ 情景例句
Can I help you?
我能帮你忙吗？
I guess it is.
我猜是这样。
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？