然而，在美国社会，阶级结构没有那么严格；有些人很轻易地就改变了职业，并认为提高他们的社会和经济地位是他们自己的责任。
In American society, however, the class structure was less rigid; some people changed occupations easily and believed it was their duty to improve their social and economic position.
你应该更多的自信，不轻易放弃，当你遇到困难你应该改变困难的挑战，面对他们勇敢地进入。
You should be confident in yourself and do not give up easily when you meet with difficulty. You should change difficulty into challenges and face them bravely.
他们做决定时很慢，一旦做出决定，绝不轻易改变。
They are slow to make up their minds, but once they have taken a decision, they are unlikely ever to change it.
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