How often will people who can only operate the system be left alone in the home?

唯一知道如何操作它的人独自在家的几率有多大？

youdao

It is dangerous for children under five years old to be left alone at home.

把五岁以下的儿童独自留在家里是很危险的。

youdao

It is dangerous for children under five years old to be left alone at home.

把五岁以下的儿童独自留在家里是很危险的。

youdao