They stand alone and can be used alone.

他们是独立的，可单独使用。

youdao

Those who used to chastise America for acting alone in the world cannot now stand by and wait for America to solve the world's problems alone.

过去有人严厉抨击美国在全球单独行动，如今他们也不能袖手旁观，等待美国单独解决世界面临的问题。

youdao

BARACK OBAMA: "Those who used to chastise America for acting alone in the world cannot now stand by and wait for American to solve the world's problems alone."

过去时常责难美国单独行动的国家现在不能袖手旁观去等待美国单独去解决世界问题。

youdao

He said it all started when Eugene McCarthy was willing to stand alone and change history.

VOA: special.2009.08.30

"Those who used to chastise America for acting alone in the world cannot now stand by and wait for American to solve the world's problems alone.

VOA: special.2009.09.26

Those who used to chastise America for acting alone in the world cannot now stand by and wait for America to solve the world's problems alone.

VOA: standard.2009.09.23

This distinction will lead you to decide if you need a stand-alone website and a stand-alone app (with all of the extra development time and expense that entails) or if you can start with a responsive website that can do it all (with potential performance and device functionality penalties).

FORBES: General Assembly: Learn To Talk Like A Mobile App Genius In Just One Hour (Or Less)

If the deal they made holds, there will be endless spin and analysis about who moved and who blinked, but perhaps more significant is that all parties wanted a deal rather than to stand alone and risk the wrath of either the victims of press abuse or of newspapers enraged by regulation.

BBC: How the leaders reached Leveson deal

Both Memcached, which accelerates existing relational databases like MySQL, and Redis, which is a complete, stand-alone database and acceleration solution, are open source technologies.

FORBES: Big Data and NoSQL: Five Key Insights