请再翻译3句英语

1. 一个理论是否正确必须在实践中得到检验。（test)

2. 面对新的挑战，他始终充满信心。（be full of）

3. 在国外是否要付小费和讨价还价要入乡随俗。（bargain）

1. If the theory is right or not must be tested by practices.
2. He's always full of confidence when facing to a new challenge.
3. Whether need to give tips and bargain or not, when in Rome, do as the Romans do.

我喜欢我的翻译风格。

1. A theory is correct must be tested in test.

2. The face of new challenges, he has always confident. (Be full of)

3. Whether or not to pay the tip in foreign countries and bargaining to do as the Romans. (Bargain)

1 A theory is right or not need testing in practice.

2 Facing new chanllenes,he is always full of confidence

3 Whether or not to tipping and bargaining in foreign countries should do as the natives.

感觉上面的翻的好像比较标准

1.Wheather a theory is ture or not must be tested by practice.

2.Facing new challenges,he always full of confidence.

3.额……第三句不会……

1. A theory is correct must be tested in practice. 2. The face of new challenges, he has always confident. 3. Whether or not to pay the tip in foreign countries and bargaining to do as the Romans.

1. A theory is correct must be tested in practice. 2.Faceing of new challenges, he is full of confident. 3. Whether or not to pay the tip in foreign countries and bargaining to do as the Romans.

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