In Germany this winter, the governing Christian Democrats proposed steep rate cuts to try to balance the market.

VOA: standard.2010.03.23

If we have a small engine, and we have to pull the car up a steep hill,a difficult hill, the engine is more likely to collapse,to blow up.

如果我们用的引擎很小，想把车开上一个陡峭崎岖的山坡，引擎很容易损毁，爆炸。

哈佛公开课 - 幸福课课程节选

If we have a small engine, and we have to pull the car up a steep hill,a difficult hill, the engine is more likely to collapse,to blow up.

如果我们用的引擎很小，想把车开上一个陡峭崎岖的山坡，引擎很容易损毁，爆炸。

哈佛公开课 - 幸福课课程节选