Umer
abbr. unit mass emission rates 单位质量发射率
🗣️ 情景例句
Her boyfriend couldn't provide her with a sense of security.
她的男朋友无法给予她安全感。
They say there's a traffic accident in front of us.
据说在我们前方发生了车祸。
Sorry, Lucy. You look the same.
对不起，露茜。你们长得很像。