他对电脑游戏的成瘾意味着他在室内待的时间太长了。

His ___addiction to computer games means he is spending far too much time indoors.

毒品成瘾可能对一个人的生活造成毁灭性影响。

Drug ___addiction can have devastating effects on a person's life.

她多年来一直在与酒精成瘾作斗争。

She has been struggling with an ___addiction to alcohol for years.