Klang
[医] 音响
🗣️ 情景例句
Why don't we take a walk down to the river?
我们何不一路散步到河边去呢？
Stereo set playing a record
放着唱片的立体声唱机
namely 6 million million miles.) Radio waves also travel at the speed of light,
即6万亿英里）。无线电波也是以光速传播的。