Backing pump
[化] 前级泵
🧩 词语组成解析
backing
[['bækiŋ]]
n. 后退, 衬背, 后援, 支持者\\n[化] 衬垫
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
He's teething.
他正在长牙齿。
We're driving faster than you.
我们驾驶的比你快。
He told me not to bring you anything.
他吩咐我不要给你带什么东西。