Polyvinylamine
聚乙烯胺; 聚乙烯胺
🗣️ 情景例句
Well, forty-seven, to be exact.
准确点说， 四十七年。
This part of the country is very hilly.
这个国家这一部分有很多丘陵。
From this we get the expression to make a beeline for someone or something, which means to go quickly along a straight direct course for someone or something.
从这里我们得到一条短语"to make a beeline for someone or something，意思是迅速地沿着一条直线向某人或某物走去。