  That's It 原来是这样

  I once lived in Arizona near fort Huachuca, an Army installation. Our street consisted mainly of mobile homes with small yards, but grass was difficult to grow in that climate, especially with the many children and dogs romping through the neighborhood. One lawn stood out, however. It was green and lush with neat rows of flowers. I was puzzledhow the owner managed to do it until I noticed a sign in the yard. It read: "Danger-Minefield." 
  我在亚利桑那州靠化奇卡要塞附近的一个军队驻扎地住过一段时间。街道两边主要是带有小型庭园的移动房屋，不过由于气候的原因，尤其是许多顽童还有狗四处乱跑，所以青草很难生长。然而，有一片草地幸免于难，长得郁郁葱葱，还间隔着排排鲜花。主要是用了什么妙方呢？当我注意到放在庭院里的一块牌子时就不觉得奇怪了，上面写道："危险－布雷区。" 

  
 