so their numbers grow rapidly just when grass is plentiful. 这样能够在草源充足时迅速繁衍
In the treetops, the broad leaves rapidly expand to their full size to make the most of summer while it lasts. 在树梢 树叶很快生长开来并保持这个状态一直到夏末
Fish and krill stocks are declining so rapidly that spectacles like this may soon be part of history. 鱼和磷虾的产量正在迅速减少 象这样的景象可能很快将成为历史
Able to repair and reproduce itself rapidly, it covers more of the Earth's land than any other plant 草能迅速地自我修复 繁殖能力极强 在所有植物中 既是覆盖地球面积最大的
but the ice that has supported him all winter is rapidly disintegrating. 但是在冬天能够支撑它的冰面现在正迅速地解体
and the pleats on its trunk enable it to expand rapidly. 茎上的皱褶使之能迅速膨胀