Librations
(libration 的复数) n. 摆动, 天平动
🗣️ 情景例句
This is fun. It's a piece of cake.
有意思 毫不费力。
He is a man of his word.
他是守信的人。
We have our evening meal at about a quarter past six.
我们6：15分左右吃晚饭。