Paraffinicity
[机] 链烷烃含量
🗣️ 情景例句
I don't have time to take any elective classes.
我没有时间去上任何选修课。
The child is father of the man.
三岁定到老。
By correlating markings made in various parts of the world, historians have been able to read this difficult code.
历史学家通过把世界各地留下的这种痕迹放在一起研究，终于弄懂了这种费解的代码。