1.The survey said that people who are addicted to the Internet have problems in life if they cannot get online regularly.
be addicted to沉迷于;有癮
We think he will not be addicted to computer games any longer.
我們認為他不在會沉溺于電腦游戲 。
2.We found that [students addicted to the Internet] had significantly more trouble dealing with their day-to-day activities.
have trouble (in) doing sth,表示“做某事有困難”
He was having trouble hearing her.
他發現要聽清楚她說話很困難 。