Our class,in fact, is just before lunch time, and I'm happy to say that when they do my class, they don't need lunch any more because they eat what they make."

VOA: standard.2010.05.14

When we talk about p orbitals the phase of the orbital becomes important once we talk about bonding, which hopefully you were happy to hear at the beginning of class we will get to soon.

对于ｐ轨道,当我们讨论到成键时，轨道的相位就变得非常重要了,这个我们马上就要讲到了。

麻省理工公开课 - 化学原理课程节选

What it does for him is allow him to buy his aunt this symbol of a middle-class American domesticity, and he is a happy participant in this new purchase.

这让他能够给阿姨,买这个美国中产阶级家庭生活的象征物，而他也很高兴能这么做。

耶鲁公开课 - 1945年后的美国小说课程节选

Unlike fat and happy middle-class America, the developing world has a lot of unmet needs and pent-up demands--not for faster Internet connections and SUVs (yet), but for simple stuff such as telephones and cosmetics.

FORBES: The World to Gain

The only thing what will save Republicans now is if the investor class is happy and votes to give Republicans another turn at the wheel.

FORBES: Snow Out, Paulson In

Some commentators believe the political class are happy with the situation.

BBC: A tale of two Russians