adhesive和glue的区别？
People use these two words pretty much interchangeably, but there are some specific technical differences and some subtle functional differences between the two.
Technically, the difference between a glue and an adhesive is the difference between natural and artificial. Glues come from natural sources and adhesives are man made.
ring binder是什么意思
ring binder
活页簿；活页夹
环圈式活页封套；装订机；扣眼活页夹
例句筛选
1.
Set up a three ring binder with tabs for January through December.
建立一个三孔文件夹跟进一至十二月的资料。
2.
The ring binder and the post binder are examples of loose leaf binding.
例如铁环活页夹或螺柱活页夹都是活页装的一种。
