1. We all shared in her happiness when she won the scholarship(奖学金).
2. Time is the most precious(宝贵的)thing that we have.
3. In a good marriage(婚姻), both husband and wife work hard to solve any problems that arise.
4. His passive(被动的) attitude made me really annoyed.
5. The principle(原则) of the design is to offer the best to the readers.
6. Social evolution always takes place in the dilemma(困境) of economic development and cultural preservation.
