To avoid going extinct a population must not only survive, but also reproduce.
避免种群灭绝不仅必须生存，而且要繁殖。
And do they have that object that is all but extinct: a card catalog with narrow oak drawers holding thousands of 3-by-5-inch CARDS?
它们有这种几乎绝种的东西么——存放着成千上万张宽3寸长5寸的书卡、由好多个橡木抽屉组成的卡片柜？
And do they have that object that is all but extinct: a card catalog with narrow oak drawers holding thousands of 3-by-5-inch CARDS?
它们有这种几乎绝种的东西么——存放着成千上万张宽3寸长5寸的书卡、由好多个橡木抽屉组成的卡片柜？
应用推荐