Decanetric waves
[电] 十米波
🧩 词语组成解析
n. 波（wave的复数形式）
🗣️ 情景例句
and you work late.
也工作到很晚。
Seeing is believing.
眼见为实。
How long did it take you to accomplish this complicated job?
你花了多久才作完这复杂的活儿？