Granosealing
磷酸盐处理, 磷化处理
🗣️ 情景例句
There are four of us including my parents, a younger sister and me.
有四口人，父母亲、妹妹和我。
Kill the goose that laid the golden egg.
杀鸡取蛋
You must always return your library book on time!
你必须按时归还图书馆的书！