Umer
abbr. unit mass emission rates 单位质量发射率
🗣️ 情景例句
The most important thing is for you to decide your own future.
最重要的是你要自己决定自己的未来。
Success grows out of struggles to overcome difficulties.
成功来自于克服困难的斗争。
I tried losing weight, but nothing worked.
我曾试着减肥，但是毫无效果。