Turnerella
特纳藻属
🗣️ 情景例句
This is Susan with Jiaotong University student. May I have your name, sir?
我是交通大学的在校生苏珊，请问您贵姓？
What can it be?
它是什么呢？
from which can be seen the strata the drill has been cutting through.
从中能看出钻头所钻透的地层。