As the plant dries, these resources take on first the properties of honey, then rubber, and finally enter a glass-like state that is the most stable state that the plant can maintain, Farrant says.

2018年6月六级真题（第一套）阅读 Section B

It is nearly identical to our own planet in bulk properties, such as mass, density and size.

2019年6月六级真题（第二套）听力 Section C