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