回答

・to keep an appropriate distance with people.
・to keep some space between you and other people.

「適度的距離感」中的「距離」我認為不管用以下哪種都可以表達。
space　空間
distance　距離，感覺

It is important to keep an appropriate distance with people.
It is important to keep some space between you and other people.
保持適當的距離感是很重要的。

appropriate　適當的

有幫助｜0