例句

So, what I want to do is go back to this simple polymer configurational model that we introduced before.

那么,我想做的是回到,简单的聚合物构型模型,我们之前介绍过的。

Latex, a material obtained from rubber trees, is a natural polymer of isoprene.

乳胶,一种从橡树获得的物质,是天然的异戊二烯聚合物。