Microbiostratigraphy
微体生物地层学
🗣️ 情景例句
I see how people spend their leisure time--
我看到人们怎样利用闲暇时间
I'm afraid you will miss your plane.
我怕你会错过飞机。
They have nothing to sell and require nothing from others.
他们既不出售任何东西，也不需要从别人那儿得到任何东西，