Allenthesis
[医] 异物入体
🗣️ 情景例句
I have the whole summer ...
我有一整个暑假可以利用……
A bit in the morning is better than nothing all day.
略有胜于全无。
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。