1.export n.输出；出口

Prohibition was laid on the export of coal.
禁止煤炭输出。

2.confuse v.使困惑；使混乱

They asked so many questions that they confused me.
他们问了许许多多问题，把我弄糊涂了。

3.sufficiency n.充裕；自满

Our country has sufficiency of natural resources.
我国有足够的自然资源。

4.integrate v.整合；结合

The Message Board tool is an easy tool to integrate into daily school life.
留言板是一种非常方便的工具,可以将其整合到日常学校生活中。

5.commerce n.贸易；商业

We must promote commerce with neighbouring countries.
我们必须促进与邻国的贸易。