同学你好，该知识点来自沪江网校《BEC商务英语初、中级连读【随到随学班】》的课程，想要更系统的学习，欢迎进入课程学习。不仅可以和更多的同学一起学习，而且还有老师、助教随时的学习指导和知识点解答哦。

同学好
以下是advertisement和commercial的区别：
1. Advertise(ment)：
when an advertisement is shown in public places,like on the public walls,or on road signs, in newsapers and magazines

2.Commercial：
But when an advertisement appears/is shown on TV or on radio,it is called a commercial.
So, a commercial is a TV or radio advertisement.

总结：advertisement更倾向于是平面广告，而commercial更倾向于是电视/广播广告。

祝学习愉快！