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
What's gotten into him?
他怎么搞的？
Do not through fear of poverty surrender liberty.
不要因为怕贫困而舍去自由。
Don't thank me, said Miss Yang. We must both thank Lucy!
“不用谢我，”杨小姐说，“我俩都得谢谢露茜！”