similar class

例句：

1. 1.The two books are very similar in style.
   这两本书在风格上非常相似。
2. 2.He is similar to his father in appearance.
   他在外貌上与他的父亲相似。
3. 3. The two cities are similar in size and population.
   这两个城市在大小和人口方面是相似的。