Variable stroke pump
[化] 变量泵
🧩 词语组成解析
stroke
[strok]
n. 一击;击球;划水动作;中风;
vt. 划掉;轻抚;轻触;敲击;
vi. 击球;作尾桨手，指挥划桨;
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
Marriage between homesexuals is a controversial topic today.
同性恋者之间的婚姻如今是个具有争议的话题。
The builders are already making plans.
建筑家们已经在着手计划了。
After her husband had gone to work.
理查兹夫人等丈夫上班走后，