Umer
abbr. unit mass emission rates 单位质量发射率
🗣️ 情景例句
What is important to you in a job?
对你来讲，工作中什么是最重要的？
The more noble the more humble.
越高贵，越应谦逊。
On this occasion, however, it had slowed down considerably.
然而这一次它的速度慢多了。