1) I won't go into particulars about my past relationships.

2) You need not go into particulars.

3) The expert refused to go into particulars about certain topics.

4) I don't want to go into particulars now, I'll tell you all the details later.

5) Give me a general description of your plans. You don't have to go into particulars.

6) Then, the elementary theory and concept of software support the platform of virtual environment, and go into particulars the simulation analysis of vehicle braking performance.