Metafunction
n. 纯理功能；元功能
🗣️ 情景例句
Alexandra might call. Alexandra
可能会来电话。
I'll have to look. What do you want to for?
我得看一看。你要零钱干什么？
This depends on the precise radio frequency of the 21-cm wavelength, or 1420 megacycles per second.
这种通讯联系要靠21厘米波段，即每秒1420兆周的精确无线电频率。