ӣţţ淨  ţţ  ţţ  ţţ¼  ţţ  ţţ½  ţţ  ţţ  ţţ  ţţ  ţţ  ţţ  ţţֱ  ţţע  ţţƻ  ţţ  ţţ  ţţô  ţţ  ţţ