Rav
abbr. 瑞星杀毒软件；右心房容积（Right Atrial Volume）
🗣️ 情景例句
I've still got a ton of paperwork left to do.
我有成吨的工作要做。
It is not work that kills,but worry.
工作不会伤身，伤身乃是忧虑。
Two factors weigh heavily against the effectiveness of scientific research in industry.
两个因素严重地影响工业里科学研究的效果：