This can be a "smart" client that performs all the work and queries a "dumb" server, or a "dumb" client that relies on a "smart" server.
这可以是一个“聪明”的客户端，执行所有的工作，并查询一个“愚蠢的”服务器，或一个“愚蠢的”客户端，依靠一个“聪明的”服务器。