Circumferential speed
[机] 周速
🧩 词语组成解析
a. 圆周的\\n[医] 周缘的, 环状面的
speed
[spid]
n. 速度;快速;昌盛;（汽车的）变速器，排挡;
vt.& vi. 急行，加速;
vi. 超速;加速;迅速前行;兴隆;
vt. 加快…的速度;使成功，使繁荣;
🗣️ 情景例句
You're working pretty hard these days.
你这阵子工作得很辛苦呀。
When did you do homework?
你什么时候做家庭作业？
but custom, we have a way of thinking, is behaviour at its most commonplace.
至于风俗呢，只是些司空见惯的行为而已。