Cretaceous
01
白垩纪, 白垩纪时期
from 135 million to 63 million years ago; end of the age of reptiles; appearance of modern insects and flowering plants
语法信息
有生性状态
无生命
形态构成
复合词
不可数
cretaceous
01
白垩纪的
relating to the period between approximately 146 and 65 million years ago, when dinosaurs lived (until their extinction)
语法信息
形态构成
复合词
专有
关系形容词
不可分级
02
富含白垩的, 白垩纪的
abounding in chalk
