caution notice

例句：

1. 1. Please be cautious when crossing thestreet.
   过马路时请小心。
2. 2. The doctorgave me a caution notice about my healthcondition.
   医生给我发了一封关于我健康状况的警告通知。
3. 3. The police issued a cautionnotice to all drivers due to the heavytraffic.
   由于交通拥堵，警方向所有司机发出了警告通知。