Molecular clock
[计] 分子钟
🧩 词语组成解析
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
Bob speaking.
我就是鲍勃。
There are one hundred pennies in every dollar.
每美元是一百美分。
A skeleton was dangling before my eyes.
一具骷髅悬挂在眼前，