Mellophone
n. [音]美乐号( 一种类似法国号的中音萨克号)
🗣️ 情景例句
Your room number is 512. Here's your key.
房间号码是512。这是您的钥匙。
Knowledge is a treasure, but practice is the key to it.
知识是一座宝库，实践是打开宝库的钥匙。
The are no batteries in the radio.
收音机里没电池。