Holstein
n. 荷兰的一种乳牛；黑白花牛
🗣️ 情景例句
Thank you for asking.
谢谢你请我。
What's your favorite song?
你最喜欢的歌曲是什么？
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？