Tachometry
n. [测]转速测定(法),流速测定(法)
🗣️ 情景例句
We can learn a lot by asking.
我们到处问问会学到不少东西。
Fine feathers make fine birds.
人要衣装，佛要金装。
Hello, Betty. When are you going off to Guangzhou?
你好，贝蒂。你什么时候去广州？