Variable(displacement)pump
[化] 变量泵
🗣️ 情景例句
It was so nice to be out in the country.
出去置身乡下真是太好了。
If Grade A is not available, Grade B will do.
如果一等品无货，二等品也可以。
Yes, she is. Would you like a word with her?
她在，你想跟她说话吗？