The engine was running smoothly.

发动机在平稳运转。

《牛津词典》

Detoxification will help keep your bodily systems running smoothly.

解毒会有助于保持你身体系统顺畅运行。

《柯林斯英汉双解大词典》

Always keep in mind that your main task is to get this company running smoothly.

永远记住，你的主要任务是让这家公司正常运转。

youdao

This is a kind of general maintenance and handyman gene that keeps cells tidy and running smoothly.

WSJ: A Gene Gives a Hint Of How Long a Person Might Hope to Live

In a bad economy, management becomes the pivotal point for keeping things running smoothly and within a budget.

FORBES: The Business of Policing in a Tough Economy

The ioSphere system delivers historical performance monitoring and reporting, live performance metrics, alerts and more to ensure production continues running smoothly.

ENGADGET: Fusion-io announces ioFX, a super-SSD that's already garnered an Oscar