A single light bulb hangs above the table. There are a couple of pieces of furniture,small sofas without cushions,and a small table.

VOA: standard.2010.02.23

We have either single atoms or molecules consisting of small numbers of atoms.

单原子或者分子,由很多很小的原子组成。

麻省理工公开课 - 固态化学导论课程节选

All change begins in the mind of single person or a small group."

所有改变从一个人或一小众人的思想开始“

哈佛公开课 - 幸福课课程节选