While a thread is running, either uploading or downloading, you can query it to check on its status to provide the user with feedback (e.g. a progress bar).

当一个线程在运行的时候，不管是上传还是下载，你可以查询进程状态并且给用户一个反馈（例如一个进度条）。

youdao

We provide books, and we set tests every week to check your progress.

我们会提供书本，并且每周设置测试来检查你的进度。

youdao

Check your progress. After you've acted and the situation is over, spend some time thinking about how it went.

看下自己的进步。在你采取了行动，情境过了之后，花些时间去思考下事情的经过。

youdao

So we can sort of check the progress of the code.

而并不仅仅是返回一个最终结果。

麻省理工公开课 - 计算机科学及编程导论课程节选

Check. So, we're making progress already.

注意，我们已经有所进展了。

哈佛公开课 - 计算机科学课程节选

Ms Del Ponte will visit Serbia soon to check progress (the government has posted a reward for the missing general, 12 years after he was indicted).

ECONOMIST: Serbia's future: The Russian option | The

Instead, heads of government will regroup for further summits each spring to check on progress.

ECONOMIST: But it won��t be convincing if it can��t utter the word America

' Later, I accompany Juan as he strolls through his fields to check the progress of the vines.

BBC: The three colours of Ibiza