So it's a different class of resource not as easy to develop, and not even recognized as something worth pursuing, say,twenty years ago."

VOA: special.2009.10.23

If you think this class is going to be easy, I think it isn't actually an easy class. It's actually quite a hard class, but I think I can guarantee it's going to be a fun class.

你要是认为这门课挺简单,这不是轻松的课,事实上它有点难,我保证这门课一定很有趣

耶鲁公开课 - 博弈论课程节选

I used to... you know, I lived and worked out of Sloane Lab up on the hill and it was easy to have office hours before or after class but now you have to make a special trip.

我以前...,我以前的工作和住的地方都是斯隆实验室外的,小山上,那时的开放时间设在课前或课后对我来说都很方便,但是现在你们就得费点儿周折了

耶鲁公开课 - 基础物理课程节选

Trade unionists in the Obama campaign know better than anyone that their candidate is not an easy sell with the working class, including some of their own members.

NEWYORKER: The Hardest Vote

Every photo and HD video is truly in the hands of the photographer, as the P7700 offers unprecedented creative control for its class, from easy automatic options to full manual controls.

ENGADGET: Nikon intros flagship Coolpix P7700 for prosumers, diminutive Coolpix S01 for fashionistas

Yet despite the muddle over what the markers of class are these days, 71% of those polled by YouGov still said they found it very or fairly easy to figure out which class others belong to.

ECONOMIST: Class