ӣţţֱ  ţţ  ţţ  ţţ½  ţţ½  ţţ淨  ţţ½  ţţ  ţţ½  ţţ¼  ţţƽ̨  ţţƻƽ̨  ţţ  ţţ  ţţ½  ţţ  ţţ¼  ţţ  ţţ½  ţţע