他想像谢丽尔跌坐在候诊室的一把塑料椅子上。

He had a vision of Cheryl, slumped on a plastic chair in the waiting room.

《柯林斯英汉双解大词典》

我当时正坐在一把摇摇晃晃的塑料椅子上。

I was sitting on a wobbly plastic chair.

《柯林斯英汉双解大词典》

椅子都包了一种塑料膜。

The chairs were covered in some sort of plastic stuff.

《牛津词典》

We're familiar with polymers, plastics in our daily life; the chairs that you're sitting on are made of a kind of a plastic polymer that is basically an organic chemical that is cross-linked together.

我们应该很熟悉聚合物,比如日常生活中的塑料就是,你们坐的椅子,就是由一种塑料聚合物构成,它由基本的有机化学物质交联在一起

耶鲁公开课 - 生物医学工程探索课程节选