ӣţţע  ţţͼ  ţţ  ţţ淨  ţţô  ţţ淨  ţţ½  ţţƻ  ţţ  ţţƭ  ţţ  ţţô  ţţ  ţţע  ţţƽ̨  ţţע  ţţ  ţţֱ  ţţ淨  ţţ