老老实实

例句：

1. 1. He always tries to be truthful in his dealings with others.
   他总试图在与其他人的交易中保持诚实。
2. 2. She is a very honest person, always telling the truth.
   她是一个非常诚实的人，总是说真话。
3. 3. The teacher praised him for being honest and hardworking.
   老师表扬了他诚实和努力工作。