alert area

• 警戒区

alert area的用法和样例：

例句

1. Also exclusionary area set up around aircraft for unknown exposition at this time also.
   同时在没有说明的情况下，在飞机周围确立了警戒区。
2. I left the cordoned-off area and caught the ceremony in the lobby of a big, cushy hotel not far from the stadium.
   我离开了警戒区，并在距离体育场不远处的一个大酒店内观看了开幕式。