一种可能的解释是社会孤立——我们更喜欢在独自一人时做更多的事情，而比以前更少参加集体活动。

One possible explanation is social isolation-we tend to do more things on our own and engage in fewer group activities than we used to.

youdao

我不认为自己内向。有时我喜欢独自一个人。但是其他时候，我花许多时间跟大家一起参加活动。

I wouldn't call myself introverted. Sometimes I enjoy being by myself very much. But other times I like sharing activities with others too.

youdao