要成为一个成功的时装模特，一个人不仅要长相出众。他还必需要自信、优雅并有时尚感。
To be a successful fashion model, a guy needs to be more than just a looker. He has to have confidence, poise and a sense of style.
想要成功，那么你需要的就是无知和自信。
All you need is ignorance and confidence and the success is sure.
他们需要为曾经免费的零部件支付专利税；或者，如果他们决定侵犯专利权，他们将不能像以前一样自信地认为能够侥幸成功并逃脱处罚了。
They now have to pay royalties for parts that used to be free; or, if they decide to infringe a patent, they can no longer be reasonably confident of getting away with it.
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