作为交换生，艾伦来齐齐哈尔已经一年半了。

As an exchange student, Alan has been in Qiqihar for one and a half years.

youdao

这个数据库已经开发了一年半了。

The database have developed for one and half year.

youdao

我跟我的男朋友相处，已经一年半了。

I have been in a relationship with my boyfriend for a year and a half.

youdao

I don't see a vacation for at least a year, year and a half with Amtrak because I'm brand new.

我至少一年没休假了，我在Amtrak做了一年半了，因为我是新人。

享受冲浪 - SpeakingMax英语口语达人