Parasternal
[医] 胸骨旁的
🗣️ 情景例句
Mr. Nelson.
Nelson先生。
Good luck!
祝你好运。
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？