Social engagement is very important.

社会参与是非常重要的。

She has cancelled all her social engagement.

她取消了所有的社会活动。

He missed the social engagement and made his girlfriend very angry .

他没有出席社交场合，这让他的女朋友非常生气。

The normal rules of social engagement, he feels, don't apply to him.

他觉得普通的社会规则对他并不适用。

Once, some neighbors of mine stopped by for a friendly social engagement.

曾经，我的一些邻居终止了友好的社交。