warning line

例句：

1. 1. The police warned the public about the dangers of driving under the influence.
   警方警告公众酒后驾驶的危险。
2. 2.The road was marked with a warning line to prevent accidents.
   道路标有警告线以防止事故。
3. 3.The company posted a warning line on its website to alert customers about new product releases.
   公司在其网站上发布了一个警告线，提醒客户有关新产品发布的消息。