Pinard's
[医] 皮纳尔氏征(妊娠六月后压子宫底有锐痛为臀位)
🗣️ 情景例句
It's delicious.
味道好极了。
Well, it's too bad that you have to go.
哦，真遗憾，你一定要走。
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。