n.游手好闲；闲置；慢速；空转

动词idle的现在分词形式.

He preferred to be working instead of idling about. 他宁愿工作而不愿游手好闲。

Sam was a very active sort of person and could not bear to see the lazy fellow idling about in the office this afternoon. 萨姆是个很积极的人，看到那懒小伙今天下午在办公室里游手好闲的样子，他真受不了。

We heard the sound of an engine idling. 我们听到发动机空转的声音。