Variable(displacement)pump
[化] 变量泵
🗣️ 情景例句
So how are we going to find the owners?
那么我们如何去找狗的主人呢？
Care and diligence bring luck.
谨慎和勤奋，带来好运气。
Some hotels supply boiled water on request and this can be used for drinking, or for brushing teeth.
有的酒店根据要求可提供开水，这些开水可用于饮用和刷牙。