warning region

例句：

1. 1. The military has set up a warning region around the border to prevent incursions.
   军方在边境周围设立了一个警告区域，以防止入侵。
2. 2. The scientists have warned that the climate change could lead to a warning region.
   科学家们警告说，气候变化可能会导致警告区域。
3. 3. The firefighters were ordered to evacuate the warning region and protect civilians.
   消防员被命令撤离警告区域并保护平民。