运行分类、群集或最近邻都不如回归模型简单，但它们也没有那么困难。

Running a classification, clustering, or Nearest Neighbor isn't quite as easy as a regression model, but they aren't much harder.

youdao

还可以使用另一种方法执行 JSON RPC 调用 —— 使用 Dojo XMLHTTPRequest 包装器 (dojo.xhr) —— 但是这需要更多的代码，而且也没有清单 3 所示的那么简单。

There is another option to perform a JSON RPC call -- using the Dojo XMLHTTPRequest wrapper (dojo.xhr) -- but that requires more coding and is not as straightforward as what is shown in Listing 3.

youdao

作为增强企业特性的代价，您牺牲了简单性，客户机占用空间(client footprint)也不再像以前那么小了，而且也没有了异步性。

In exchange for enhanced enterprise features, you sacrifice simplicity, a small client footprint, and asynchrony.

youdao