ӣţţ  ţţ  ţţô  ţţ  ţţƽ̨  ţţ  ţţ  ţţ  ţţ  ţţ  ţţͼ  ţţ  ţţ  ţţô  ţţ¼  ţţ  ţţ  ţţ½  ţţ