重点讲解：
1. different kinds of 不同种类的；各种各样的；
例句：In a big department store, there are numerous departments selling different kinds of goods.
大百货公司里有许多部门分售各类商品ANZ])Q@*2n9。
2. rely on 依赖；依靠；
例句：We will rely on scientific and technological advancement, encourage the role of market mechanism and economic leverage.
我们将依靠科技进步，发挥市场机制和经济杠杆的作用hEKCuMEERyWxaNH。
3. speaking of (接过话头引入新话题)说到…，谈到…；
例句：Speaking of the fringe benefits and working conditions of that company, all the employees shut up their mouths.
说到那家公司的福利和工作条件，所有的雇员都闭口不谈[cCH^y.Ju^1ME。
4. plug in 连接；
例句：He plugged in his guitar.
他连上了他的吉他F-hb_Z-A@C%W。