afoot

形容词 afoot:

1. traveling by foot
2. currently in progress
   同义词：underway

副词 afoot:

1. on foot; walking

1. If there is any mischief afoot, he is sure to be in at it.
   要有什么调皮捣蛋的事，肯定有他的份。
2. The work is well afoot.
   工作在顺利进行中。
3. I set a project afoot.
   我开始执行计划。