Davin
[人名] [爱尔兰姓氏] 戴文 Devane的变体; [人名] 达文; [地名] [加拿大] 达文
🗣️ 情景例句
Will you help me?
可以帮助我吗？
Don't worry about it.
别管他！
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。