Background music
[电] 陪衬音乐
🧩 词语组成解析
🗣️ 情景例句
Can you tell me where the tourist sites are located?
你能告诉我本地有什么旅游名胜吗？
He already has a phonograph,but he doesn't have a radio yet.
他已经有一架留声机，但是他还没有收音机。
Once the existence of this wave-length had been discovered,
一旦这种波长的实际存在被发现，