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
I did.
是的。
I'm not well enough.
我还不够棒。
was susceptible to a fatal virus disease, myxomatosis.
易患一种叫做"多发性粘液瘤的致命病毒性疾病。