Frequencies
n. 频率（frequency的复数形式）；频数分析；次数分配表
🗣️ 情景例句
The old couple has already been married for fifty years.
那对老夫妻结婚已经 50 年了。
No garden without its weeds.
有利必有弊。
It was from the study of these that so much was learnt about the interior of the earth.
正是从这两种波的研究中，我们可以了解到地球内部的许多情况。