动物需要用植物来掩护自己以躲避天敌和安全地抚育自己的孩子。
Animals need cover to hide from their natural enemies and to raise their young safely.
当建筑物倒下时，每个只“蹲下和掩护”的人都几乎全被压死了。而那些躲到物体，如桌子，或汽车下躲避的人也总是受到了重伤或死亡。
Most everyone who simply 'ducks and covers' when building collapse are crushed to death. People who get under objects, like desks or cars, are crushed.
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