This medicine seems to work by governing the activity of a chemical involved in information processing, storage and memory.

VOA: special.2011.02.08

On Monday I stressed that poetry was, for Frost, always a mode of work, and that work was for him a model of poetic activity.

星期一我强调过诗歌对弗罗斯特来说，是工作的一种形式，这种工作对他来说是一种诗般的运动。

耶鲁公开课 - 现代诗歌课程节选

They are just encouraging each other and I stop doing before work in morning, the paper pencil kind of activity because I saw them going right to the computer, and I say,hey, they're learning more from than when they are just from the revision.

他们在相互鼓励,我现在不用在早上，做那些纸和铅笔的活动了,因为我看到他们径直走到电脑那，我想，他们能从那学到的,比从复习中学到的要多。

麻省理工公开课 - 媒体、教育、市场课程节选

"It does not have to be legal work. It can be begging. It can be all kinds of activity.

VOA: standard.2009.08.21