她把成年后的时间全用于维护那一关系。

She had invested all her adult life in the relationship.

《牛津词典》

这个令牌用于维护握手会话。

This token is used to maintain the handshake session.

youdao

分支：用于维护干线开发之外的软件。

Branches: Used to maintain software outside mainline development.

youdao

And so when you start to do this, you can now have a much more portion of your IT spending dedicated to maintenance and sustaining.

所以开始做这件事的时候，很大一部分的信息技术开销,都用于维持和维护了。

斯坦福公开课 - 戴尔CEO-Michael.Dell谈创业和发展课程节选