ӣţţ  ţţ¼  ţţ  ţţƭ  ţţ  ţţ淨  ţţ  ţţ½  ţţͼ  ţţ½  ţţ  ţţ½  ţţ  ţţƭ  ţţô  ţţ  ţţ  ţţ  ţţƻ  ţţֱ