仅存在于…；仅限于…
to exist only in a particular area or group of people
We know that the illness is not confined to any one group in society. 我们知道这种疾病不只局限于社会的某一个群体中。
This attitude seems to be confined to the very wealthy. 这种态度似乎只存在于上层阶级中。
Since the economic situation got worse, these problems aren't confined to small businesses.
The impact of last week's tragedy isn't confined to the families who lost loved ones.
Experts say the environmental damage is likely to be confined to the immediate area.
See also: confine