1、45英语是forty-five。音标：英[fɔ:tɪfaɪv]；美[fɔ:tɪfaɪv]。

2、forty-five词义：n.四十五分(时间)adj.四十五（分）的；pron.四十五。

3、例句：

Now there are three teachers and forty-five students in the primary school.这所小学现在有三名教师和四十五名学生。

That alarm clock must be fast.Its five forty-five.那个闹钟一定是快了。现在是五点四十五。