Education happens everywhere, not just with your nose down in a book, or stuck into a computer screen.

学习无时无刻不在发生，而不只是你面前的书本或电脑屏幕。

If you go much faster, the center of lift moves back on the wing, pushing the nose down and increasing velocity, until you soon approach the speed of sound.

如果飞机飞的太快的话，升力的重心就会从机翼转移到前半部机身上，飞机就会下降，速度会接近音速。

I don't look down my nose at comedy.

我不轻视喜剧。

More problems can develop if a person looks down his nose at someone or something.

VOA : special.2009.09.13

"It was pretty much of a shock when I got here." "I mean,if you're going to talk to some of your friends of some of the stuff you saw and you can't describe the smells, the feeling of the heat on your body and the sweat running down your back, the smell of the pus that hits your nose of unwashed bodies in a closed room, the circulation, the smell of your own panic when you're not sure what to do" Other doctors in the film echo Dr.Krueger's sentiments.

VOA : standard.2010.06.29

The car was rock steady at 130mph, and with modifications to keep its nose down was good for 150mph.

ECONOMIST: Alejandro De Tomaso | The

We want to fly nose-down, explains United President John Edwardson, referring to loading up the front seats with more first-class and business-class travelers.

FORBES: Teaching an airline to fly

But with his own plane in a near-vertical, nose-down dive, the pilot and his crew had little time to think about the fate of the Chinese pilot.

CNN: 'We did it right'