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　　Children can be difficult as we know only too well.

　　小孩子往往很难对付，对此我们都非常清楚。

　　This tool can be used in a variety of ways.

　　这一工具有多种用途。

　　The results can be divided into three main categories.

　　结果可分为三大类。

　　The data can be interpreted in many different ways.

　　这份资料可以从多方面解读。

　　The transition from school to work can be difficult.

　　从在学校念书到上班工作，这一转变有时候可真不容易。