ӣţţ  ţţ  ţţ  ţţƻ  ţţ  ţţô  ţţ  ţţ½  ţţ  ţţ  ţţֱ  ţţ  ţţ  ţţֱ  ţţƽ̨  ţţע  ţţ  ţţƭ  ţţ½  ţţô