Ecostratigraphy
生态地层学
🗣️ 情景例句
Everybody in Riverdale reads his paper.
Riverdale的每个人都看他的报纸。
When the belly is full the mind is among the maids.
逸则思淫。饱则思淫欲？
Justice is part of the complex machinery of the law.
正义是复杂的法律机器组成部分。