Remember that when a program makes a function call (especially for recursive ones), it has to store its return address and local variables on the stack.
记住当程序进行函数调用（特别是针对递归函数）时，它必须在堆栈上存储返回地址和本地变量。
2
Non-recursive queries allow the server to return a partial response, such as returning the name or address of the server that may know the answer (or may have more information).
非递归查询允许服务器返回部分响应，例如返回可能知道答案(或可能具有更多信息)的服务器的名称或地址。
3
Non - recursive queries allow the server to return a partial response, such as returning the name or address of the server that may know the answer (or may have more information).