Wavemeter
[电] 波计
🏥 医学释义
波长计，频率计
🗣️ 情景例句
I certainly am. May I help you?
我是，我能帮您什么忙吗？
To carry a tray of food
用盘子端食物
Justice had been done even before the man was handed over to the police.
甚至在那人还没被送交给警察之前，正义就已得到了伸张。