Polyacrylamide
[化] 聚丙烯酰胺
🗣️ 情景例句
Tom, would you give Mr. Johnson Tom
拿给Johnson先生
A forest fire has consumed all the trees here.
一场森林大火将此地的树木焚烧殆尽了。
He usually takes a short walk in the evenings and is always home by seven o'clock.
傍晚常常出去溜达一会儿，并且总是在7点钟以前回来。