发出警告用英语怎么说？

发出警告

例句

• He stood ready to fire a warning flare. 他站着准备发出警告信号。
• Sensible policymakers are cautioning that the world economy could weaken again before It'strengthens. 理智的决策者正发出警告,全球经济可能会再次下滑,然后才能走强.
• Some analysts express caution against overstating China's naval prowess. 一些分析人士对夸大中国海军实力的说法发出警告.
• Mr Golding delivered an oblique warning, talking of the danger of sudden action. 戈尔丁先生谈及草率行事的危险，这是他在委婉地发出警告。
• The soldiers opened fire without warning... 士兵们在没有发出警告的情况下开了枪。
• Teachers warn today that Latin, Greek and other classics will be squeezed out of school timetables. 老师们今天发出警告说，拉丁语、古希腊语和其他古典文学将被挤出学校的课程表。