ӣţţƻƽ̨  ţţ  ţţͼ  ţţ  ţţ  ţţ  ţţ淨  ţţ½  ţţ½  ţţ淨  ţţ  ţţƽ̨  ţţƻƽ̨  ţţƭ  ţţô  ţţ  ţţ  ţţͼ  ţţֱ  ţţע