Sector velocity
[化] 扇形速度
🧩 词语组成解析
🗣️ 情景例句
Pleased to meet you.
很高兴见到你。
Take the world as one finds it.
听之任之。
In primitive cultures the obligation to seek and to receive the traditional instruction is binding to all.
在原始文化中，寻求和接受传统教育的义务对全民都有约束力。