You must let go of the idea that to be single is to be unhappy and unfulfilled.

你必须放弃单身就不快乐不满足的想法。

《柯林斯英汉双解大词典》

This is mainly because women are more likely than men to be single parents living with their children.

这主要是因为女性比男性更有可能成为和孩子一起生活的单亲父母。

youdao

Whereas some of the low self-control study members are more likely to be single parents with a very low income and the parent is in poor health and likely to be a heavy substance abuser.

然而，一些自我控制能力低的研究对象更有可能是收入非常低的单亲父母，父母的健康状况很差，很可能是重度药物滥用者。

youdao

No single space project in this period will be more impressive to mankind or more important for the long range exploration of space.

VOA: special.2009.07.08

And something that we'll see later on is that triple bonds, for example, are going to be stronger than a corresponding double bond or a corresponding single bond.

而我们以后还会看到三键，举例来说，应该更强，相较于相应的双键,或者相应的单键来说。

麻省理工公开课 - 化学原理课程节选

so you can see that there is going to be two sets in antibonding, three sets in bonding for a net of one, giving us the single bond.

因此你能看到,反键轨道上有两组，三组成键，得到一组净成键，所以成的是单键。

麻省理工公开课 - 固态化学导论课程节选

This will be single-draft reporting so that I can keep up with events as they happen.

FORBES: Security Tight As Launch Festival Opens

To be single must mean to be lonely but far lonelier are those who fear being alone.

BBC: Viewpoint: Why are couples so mean to single people?

Blue State voters were 9 points more likely to be single and never married than Red Staters.

FORBES: ZOGBY: Border Crossings and US Public Opinion: There Is Consensus On Health Care If Anyone Cares to Look