Madoera
马都拉岛(印度尼西亚南部岛屿)；马都拉海峡
🗣️ 情景例句
I think you do.
我想你能体会。
Thoroughly to teach another is the best way to learn for yourself.
教学相长。
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。