這個報錯是什么意思?。? Exception in thread "main" java.lang.Error: Unresolved compilation problem: The type Chinese must implement the inherited abstract method IJiekou.play() at com.imooc.Chinese.play(Chinese.java:3) at com.imooc.Test.main(Test.java:13)

代碼：

package com.imooc;

public class Chinese extends APerson implements IJiekou {

public void paly(){

System.out.println("人類都喜歡玩耍");

}

public void say(){

System.out.println("中國人說中國話");

}

}