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
Tom doesn't enjoy going to school.
汤姆不喜欢上学。
I meet the boy whose aunt is a secretary.
我遇到那个男孩的姑妈是秘书。
Refuse politely any cold drink from an unknown source.
应谢绝任何不明来源的冷饮。