Variable-speed pump
[化] 变速泵
🧩 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;
pump
[pʌmp]
n. 抽水机;打气筒;泵;轻软舞鞋;
v. 用泵输送 ;涌出;急速摇晃;盘问;
🗣️ 情景例句
This is a classic in the making.
这是一部尚未完成的一流著作。
Have but few friends though many acquaintances.
朋友要少，熟人要多。
The farmer cut off part of his foot to make sure he could not run away again.
农场主把他的一只脚砍掉了一块，以确保他不能再逃跑。