1、AAA has improved the quality of our lives and are playing an important role in our daily life. The benefits AAA brings to us are far more than its disadvantages. However, we cannot ignore its problem.

　　2、On the positive side, AAA has enabled us to (1) 此处填入 AAA 的优势之一。For instance, ( 2 )举例说明优势之一。Besides, (3)AAA 的优势之二。Nowadays, (4) 举例说明优势之二。In addition, ( 5 ) AAA 的优势之三。

　　3、On the negative side, (6) 此处填入 AAA 的劣势之一。For example,(7) 举例说明劣势之一。Besides,(8)AAA 的劣势之二。Furthermore,(9)AAA 的劣势之三。

　　4、All in all, we can not live without AAA for the conveniences it brings to us, but we should also be aware of the negative effects it creates on the modern life.