Radioengineering
无线电工程
🗣️ 情景例句
To teach a fish how to swim.
孔子面前读诗书，班门弄斧。
You don not have to reveal your age.
你不必透露你的年龄。
Rays from the sun excite and energize the atmosphere of the earth,
太阳光刺激了地球的大气层，并给予它能量；