Constant rate pump
[化] 定量泵
🧩 词语组成解析
rate
[reit]
n. 速度;比率;等级;（利息等的）费率;
vt. 估价;值得;责骂;定级;
vt.& vi. 认为，把…算作;
vi. 被评价;被认为;被列入;申斥;
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
We couldn't afford it.
我们当时不够钱。
It won't fit; you'll have to go to the post office.
那不行，你必须去邮局才行。
We can't decide who should open it first.
我们难以决定谁先打开礼物包。