ӣţţ  ţţ¼  ţţ  ţţ  ţţ  ţţֱ  ţţ  ţţ½  ţţ  ţţ  ţţ  ţţ  ţţ  ţţ  ţţƽ̨  ţţ  ţţ  ţţ  ţţ  ţţô