ӣţţ½  ţţ  ţţ½  ţţ  ţţ¼  ţţƻ  ţţע  ţţֱ  ţţ  ţţƻƽ̨  ţţ  ţţͼ  ţţ¼  ţţƭ  ţţ  ţţ½  ţţע  ţţ  ţţƭ  ţţ