Ellipsin
细胞不溶质
🗣️ 情景例句
Richard, if you go out
Richard，假如你去
What time are you going?
你什么时候走？
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