ӣţţͼ  ţţ  ţţƻ  ţţ  ţţע  ţţ  ţţƻƽ̨  ţţ  ţţ  ţţ¼  ţţ  ţţ  ţţ½  ţţ  ţţ¼  ţţ淨  ţţ  ţţ  ţţ  ţţ½