Rotation operator
[计] 旋转算子\\n[化] 转动算符
🧩 词语组成解析
🗣️ 情景例句
Surprise.
惊喜。
There's nothing like a cup of tea when you're thirsty.
当你口渴时，没有什么东西比一杯茶更好了。
Everybody here is busy getting ready for it and buying Christmas presents.
这里的每一个人都在忙于为圣诞节做准备和忙于购买圣诞节礼物。