Chronostratigraphy
年代地层学
🗣️ 情景例句
I see, it's not easy to marry and start a family. So when's the wedding?
我明白，要组织一个家庭并不容易。那么婚礼订在哪天举行？
I hope we can conclude the transaction at this price.
希望我们能就此价格达成交易。
We're twins!
我们是双胞胎。