Tachometer dynamo
[电] 转数计用发动机
🧩 词语组成解析
tachometer
[tæˈkɑ:mɪtə(r)]
n. 转速计，流速计;测速计;旋速计;速度计;
🗣️ 情景例句
He's not making much progress with his English.
他的英语进步不大。
A thing is bigger for being shared.
插手人一多，事态就扩大。
Have you had any breakfast yet?
你吃过早餐了吗？