Mmr
abbr. 麻疹、腮腺炎和风疹的混合疫苗（measles, mumps, and rubella）
🗣️ 情景例句
Happy Thanksgiving.
感恩节快乐。
I'll back you up.
我支持你！
First of all, it's been improved. And it's bigger, although it's more expensive.
首先，它已作了改进。而且机子较大，尽管价格贵些。