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
The change is yours.
找回的钱给你。
See, listen, and be silent, and you will live in peace.
多看多听少多嘴，你会太平过日子。
'I suggest,' said the inspector, 'that you are not telling the truth.
“我提醒您，”探长说，“您讲的不是实话。