Positex
阳电荷胶乳, 阳[酸]性橡浆[乳胶]
🗣️ 情景例句
when she was running for the school board.
在妈妈竞选联合校董会席次时。
My friend phoned me at 10 a.m. Yesterday.
我的朋友昨天上午10点打电话给我。
This may be illustrated by comparing the position of a nation with that of a private business enterprise.
把国家的状况同私人企业的状况加以比较，就可以看清这个问题。