Chronostratigraphy
年代地层学
🗣️ 情景例句
Has poor voice, diction, grammar.
嗓音，措辞，语法很糟糕。
I'd rather you didn't.
我倒希望您不要关。
I don't know. What about this blue one?
我不清楚，这个蓝的怎么样？