Coboglobin
钴球蛋白
🗣️ 情景例句
Her eyes look so sad.
她的目光那么忧郁。
School should be a time for learning.
学生时代，应该学习许多重要的事情。
It is thought that they arrived more than 30,000 years ago by crossing a land bridge from Asia to America.
他们被认为是在3万多年以前从亚洲跨越一座陆桥来到美洲的。