yamgroup1618@yahoo.com / http://weshare.hk/yamyam/articles/2585446
好似每個GAP 都對應一個密集區, 係咪咁解呢?
very good observation ! : )
好似每個GAP 都對應一個密集區, 係咪咁解呢?
回覆刪除very good observation ! : )
刪除