发出预警/警告信号
Grammar & Usage
How it works
This is a verb-object (VO) collocation consisting of the compound verb 发出 (fāchū, to send out / issue) and the nominal phrase 预警/警告信号 (early warning / warning signal). '预警' specifically refers to advance/early warnings (often in meteorology or financial risk), whereas '警告' is a broader warning or caution. It functions as a predicate in formal reports, news, and technical contexts.
Sample sentences
气象部门已针对即将到来的暴风雨发出黄色预警信号。
The meteorological department has issued a yellow warning signal for the approaching rainstorm.
持续低迷的销售数据向管理层发出了严重的警告信号。
The persistent slump in sales figures sent a serious warning signal to management.
该监测系统一旦检测到异常数据，就会自动发出预警信号。
Once the monitoring system detects abnormal data, it will automatically issue an early warning signal.
Quick facts
Mnemonic
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Example
气象部门已针对即将到来的暴风雨发出黄色预警信号。
The meteorological department has issued a yellow warning signal for the approaching rainstorm.
持续低迷的销售数据向管理层发出了严重的警告信号。
The persistent slump in sales figures sent a serious warning signal to management.
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