Radioelectronics
n. 无线电电子学
🗣️ 情景例句
I've never worn them before.
我从来没有戴过这个。
I know the boy whose father is a mailman.
我知道那个男孩的父亲是邮差。
A burst of activity associated with the laying of submarine cables soon confirmed the Challenger's observation that many parts of the ocean were two to three miles deep,
海洋中很多地方可深达两三英里，