他们非常善于传播声音。

They are very good at diffusing sound.

youdao

真空中没有物质，不能传播声音。

A vacuum, which is the absence of matter, cannot transmit sound.

youdao

空气是传播声音的媒介物。

Air is the media of the sound.

youdao

空气是传播声音的媒介。

Air is the medium of sound.

youdao

风传播声音。

Wind carries sound.

youdao

风传播声音。

Wind carries sound.

youdao