Optical speed
[计] 光速
🧩 词语组成解析
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
T-bone steak is a very popular cut.
T型的肉排非常受欢迎。
My first name is Bill.
我的名字叫比尔。
There was danger that the wave would rebound off the other side of the bank and send the dish plunging into the water again.
但是当波浪从河对岸折回来时，就有再次把盘子拖进水里的危险。