ӣţţ  ţţֱ  ţţ  ţţ  ţţ  ţţ  ţţ  ţţ  ţţô  ţţ淨  ţţƻƽ̨  ţţע  ţţ  ţţ  ţţ  ţţ  ţţֱ  ţţ½  ţţ  ţţֱ