Uniderection
[计] 单向
🗣️ 情景例句
Tom doesn't have a steady girlfriend at the moment.
汤姆眼下还没有一个已确定关系的情侣。
Can I take my vacation, sir? I would like to see my mother in Miami.
头，我可以休假吗？我要去探望在迈阿密的母亲。
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。