他们往往不返回的结果，你所寻找的。

They often do not return the results that you are looking for.

youdao

在大多数时候，轮询不返回数据，更糟的是，会返回我们已经见过的数据，但又必须再次处理或标识为已经处理过。

Most of the time, polling returns no data, or worse, data we've already seen and have to process again or identify as having already been processed.

youdao

服务器可能返回或不返回所请求字节的数量，但是会指出在READ RPC回复中所返回(随着数据)字节的数量。

The server may or may not return the number of bytes requested but identifies the number of bytes returned (along with the data) within the READ RPC reply.

youdao

Let's test it in all possible combinations of x and y and see if we get the right answer.

来测试并看看,返回的结果正确不正确。

麻省理工公开课 - 计算机科学及编程导论课程节选

And then when I get to the very end, I'm going to return the bigger of with i and without i.

然后当我到最后时，我会返回包括i物品,和不包括i物品的,总价值中的较大值。

麻省理工公开课 - 计算机科学及编程导论课程节选

And if you're returning nothing, you don't just leave it blank.

如果不返回任何值，你就让它成为空白的。

哈佛公开课 - 计算机科学课程节选