Caesium clock
铯钟
🧩 词语组成解析
[医] 铯(55号元素)
clock
[klɑk]
n. 钟，时钟;计时器;秒表;仪表;
vt. 记录（时间或速度）;测…的速度;
vi. 打卡;记下时间;
🗣️ 情景例句
She flunked her English examination.
她的英语考试失败了。
I'm glad our negotiation has come to a successful conclusion.
我很高兴这次洽谈圆满成功。
The children were running to move the bag of rice when they heard the sound of a motorbike.
孩子们跑去搬那包大米，这时他们听到摩托车的声音。