鳄鱼妈妈一次可以产卵20 - 60个，经过3个月的孵化，鳄鱼妈妈就会打开巢穴的掩埋物帮助小鳄鱼顺利破壳。
Female crocs lay their eggs in clutches of 20 to 60. After the eggs have incubated for about three months, the mother opens the nest and helps her young out of their shells.
我们现在通过测量掩埋在漂流物中木头放射性的碳-14元素，以精确地确定冰川作用的时期。
We now know the age of the glaciation accurately from radiometric dating of the carbon-14 in logs buried in the drift.
许多在海里死亡的生物很快便被沉淀物掩埋。
Many organisms that die in the sea are soon buried by sediment.
应用推荐