Polyacrylamide
[化] 聚丙烯酰胺
🗣️ 情景例句
Are the bathrooms on this train clean?
火车上的卫生间干净吗？
Pleasant hours fly past.
快乐时光去如飞。
This festival is a cheerful occasion, for on this day, the dead are said to return to their homes and they are welcomed by the living.
这个节日是个欢乐的日子，因为在这一天，据说死去的人要回到他们的家里来，活着的人则对他们表示欢迎。