If you describe something or someone as controversial, you mean that they are the subject of intense public argument, disagreement, or disapproval.
Immigration is a controversial issue in many countries.
移民在很多国家都是一个有争议的问题。
The changes are bound to be controversial.
这些变革注定是有争议的。
the controversial 19th century politician Charles Parnell.
19世纪备受争议的政治家查尔斯•帕内尔。