I found that it was best to start with errors only, then enable the warning levels as a good way to limit the number of messages shown from the validation run.

我发现最好的做法是先从错误级别开始，然后启用警告级别，这可以很好地限制验证运行中显示的消息的数量。

youdao

And if and when Tsarnaev is well enough to be questioned, the interrogation should start with a Miranda warning.

CNN: Vengeance shouldn't guide prosecution

And usually when presidents have news conferences, they'll start out with a warning to Democrats if they are a Republican, or vice versa, but this started out with the president talking directly to the people who are responsible for helping put him in office, who have kept him in office and who have pursued his agenda with him.

CNN: Candy Crowley: Bush remarks aimed at conservatives