While I will describe how to implement this behavior, I would like to begin with a general warning.

在我准备描述如何实现这一行为时，我想先以一个一般警告作为开始。

youdao

If conversion results in character substitution, a warning might be generated depending on the data source behavior and wrapper implementation.

如果转换导致了字符替代，就会根据数据源行为和包装器实现生成一条警告消息。

youdao

We know more and more about risk factors, gene-environment interactions, and warning signs of dangerous behavior.

我们越来越了解危险因素，基因-环境的交互影响，危险行为的警示标志。

youdao

Officials say they will also investigate whether warning signs about Major Hasan's behavior were ignored.

VOA: special.2009.11.14

In addition to monitoring their own behavior, employees and managers should be trained and encouraged to watch for warning signs in others.

FORBES: Intellectual Property Theft: Beware The Enemy Within

Rather, Keys tweeted a copy of a "final written warning" he said he received from Reuters in October, which admonished him for unprofessional behavior after he mocked a Google executive from a fake Twitter account.

WSJ: Social media editor in court on hacking charges

The warning first came from an imam in Toronto, who in turn was tipped off by suspicious behavior on the part of one of the suspect.

WSJ: Suspect in Canada terror plot denies charges