Microwave frequencies
[电] 微波频率
🧩 词语组成解析
n. 频率（frequency的复数形式）；频数分析；次数分配表
🗣️ 情景例句
You'll have to come and see us soon.
你一定要再来看我们。
I took one quart of oil.
我拿了一夸特油。
But suppose the earth could be covered with sensors spaced one foot apart,
假设地球上可以布满传感器，每个相隔1英尺，