the steps for(the procedure for) 步骤、程序
the advantages of(the disadvantages of) ……的优势（劣势）
the ways to(the methods of) 做……的方法、途径
the different sections(parts, kinds, types) of 不同的部分（种类、类型）
the characteristic(traits, qualities) of 特征、特点
the problems of 问题
the precautions of 预防措施
the changes to 变化
Checking topic sentences
..