various搭配介詞

搭配介詞of，例如：

1、Schools use various methods of testing.學校採用各種各樣的測試方法。

2、There are various ways of doing this.做這一工作的方法有很多。

3、The various parts of the car are then bolted together.然後汽車的各種部件便用螺栓裝配在一起。