Densifier
增密设备(氯化物处理)
🗣️ 情景例句
There's always a friend around when you need one.
当你需要朋友帮忙的时候，总会有朋友在你身边的。
They had a baby last month.
他们上个月有了一个婴儿。
It is only in the study of man himself that the major social sciences have substituted the study of one local variation, that of Western civilization.
只是在对人类自身的研究中，各主要的社会学科才用对一个局部地区各种情况的研究（如对西方文明的研究）来代替对全人类的研究。