ӣţţ淨  ţţƭ  ţţ  ţţ  ţţƻ  ţţƻ  ţţ  ţţ  ţţͼ  ţţƻ  ţţ  ţţ  ţţ½  ţţֱ  ţţע  ţţ  ţţ  ţţ  ţţ  ţţ