英语语法分析

You are not allowed to drive a car unsupervised until you have passed a driving test.

在通过驾驶考试之前，不允许你在无人监督的情况下开车。

There are actually two approaches to unsupervised learning.

非监督学习一般有两种思路。

When kids are unsupervised, you see an increase in injuries.

孩子不受监督时，你会看到伤害增加。