预防胜于治疗

大难不死，必有后福。

(0/) 2008-12-29 11:23:22

The dog that trots about finds a bone.

(0/) 2008-12-29 11:16:18

Turn the Events to your best

(0/) 2008-12-19 07:35:23

Influenza Vaccines: What’s in that Needle? - Link

(0/) 2008-12-12 08:14:55

人生如牌局

(3/) 2008-12-01 08:28:04