Tachometry
n. [测]转速测定(法),流速测定(法)
🗣️ 情景例句
... and I do need some advice on a difficult problem.
……我的确有一个难题要请教你。
Who is calling?I don't recognize your voice.
谁打来的电话？我听不出你的声音。
I'm Scottish. I'm from Scotland.
我是苏格兰人。我从苏格兰来。