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
and work begins at eight in the morning for me.
早晨八点我就得开始工作。
Take my jacket if you are cold.
如果你觉得冷，穿上我的夹克吧。
Both men had hardly had time to realize what was happening when they were thrown violently into the sea.
他们两个还没来得及意识到究竟发生了什么事情，就被猛地抛入了海里。