1.  What's more, they have a certain sense of responsibility and a better understanding of love relationship, which help them deal with dating and studying.

2.  After all, from a certain sense, the duplicated things always belong to someone else, rather than their own.

3.  In a certain sense, friends is the people who will enlighten us when we are depressed and shou sympathy for us when we are in misery.

4.  In a certain sense, it is such a significant place that it could determine people's life.

5.  However, in a certain sense, stress is not necessarily a bad thing.

6.  In a certain sense who owns Mars who has the feature.