cretaceous
adj
(geology 地质)
1 of or like chalk 白垩质的; 似白垩的
cretaceous rock 白垩质的岩石.
2 Cretaceous of the geological period when chalk-rocks were formed 白垩纪
Cretaceous fossils 白垩纪的化石.
🗣️ 情景例句
Did anyone find a camera bag this afternoon,a small canvas bag,on the J. F. Kennedy Ferry?…No?
请问今天下午有人捡到一个照像机旅行袋吗?一个小的粗帆布袋,是在J. F. Kennedy号渡船上丢的。……没有吗