Protobranchiata
原鳃类
🗣️ 情景例句
Yes. I'd like to make a loan.
是的，我想办一笔贷款。
To catch the ball
捕球
The real dividing line between continents and oceans occurs at the foot of a steeper slope.
大陆和海洋的真正分界线是在陡坡脚大陆架慢坡