Radionavigation
[电] 无线电导航
🗣️ 情景例句
But first in the school-rooms.
但首先是在教室 。
Do you want me to explain?
让我替你说明好吗？
Thousands joined him when he led a march to the coast, with the purpose of making a little salt when he reached the sea.
为了生产一点盐，他带领游行队伍向海滨前进，当他们到达海滨时，成千上万的人参加了进来。