单词：Oligocene
音标：['ɒligәusi:n] ；
n. 渐新世, 渐新统
a. 渐新世的, 渐新统的
a. 渐新世的, 渐新统的
n. from 40 million to 25 million years ago; appearance of sabertoothed cats
词型变化：名词复数形式 : oligocenes
Oligocene的用法和样例：
例句
用作名词(n.)
- Beibu Wan Basin was a lake in the middle Eocence-Lower Oligocene.北部湾盆地在中始新世至早渐新世是一个湖泊。
- Venezuela, oil is produced from lenticular sandstone beds of the Oligocene oficina Formation.委内瑞拉奥斯特拉油田的产油层，为渐新世奥菲西那组透镜状砂岩层。
- The continental deposits of Enping formation aged from Oligocene to Eocene of Palaeocene are well-developed and widespreaded in the Pearl River Mouth Basin.珠江口盆地下第三系始新统至渐新统恩平组分布广泛。
用作形容词(adj.)
- Beibu Wan Basin was a lake in the middle Eocence-Lower Oligocene.北部湾盆地在中始新世至早渐新世是一个湖泊。
- Venezuela, oil is produced from lenticular sandstone beds of the Oligocene oficina Formation.委内瑞拉奥斯特拉油田的产油层，为渐新世奥菲西那组透镜状砂岩层。
词汇搭配
- the Oligocene渐新世