因此，结果选择器可以访问第一个集合的每个元素。

The result selector therefore has access to every element of the first collection.

youdao

所以，注册OP _ WRITE永久只是结果选择器立即返回，这是无用的。

So, registering OP_WRITE permanently just results in the selector returning immediately, which is useless.

youdao

这意味着在理想的情况下，您仅需要运行选择器一次，并且能够轻松地将所有函数连接在一起，或缓存结果供以后使用。

This means that under ideal situations, you might only need to run the selection once, with the ability to daisy-chain your functions together, or cache the results for future use.

youdao