Deuterostomia
后口动物
🗣️ 情景例句
We have strict procedure around here and we expect all of our staff to follow it.
我们这儿有非常严格的工作程序，希望全体员工遵守。
I asked him to clean it for me, but he wouldn't.
我请他帮我清理，但是他不肯。
The box is heavy. Can you carry it?
这个箱子很重，你能搬动吗？