try to switch the topic that you know. That is more of art and requires practice.
It depends. Saying "not know" for less important one, but ..
所有跟帖:
• less important ones (I mean), but .. -iCall- ♂ (0 bytes) () 10/17/2010 postreply 15:58:13
• 尽其所能做好,老想人家怎么看是杂念 -iCall- ♂ (0 bytes) () 10/17/2010 postreply 19:33:56