Gerar pump
[机] 齿轮泵
🧩 词语组成解析
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
How long does it take?
要花多久时间？
Slowly, stricter laws and regulations are being passed by Congress.
慢慢地，在国会表决通过了更严厉的法律法规。
This machine joins the metal pieces together, he said.
“这台机器把金属片焊接起来，”他说