Vertebrated
a. 有脊骨的, 由脊椎骨構成的\\n[醫] 脊椎狀的, 有脊椎的
??? 情景例句
Oh! Good afternoon. Mr. Wilson, I'm sorry, but he's not in. He's gone out on business.
哦，您好！威爾遜先生。很抱歉，他不在家，他出差了。
Suit the action to the word.
怎么說就怎么做。
They must keep their hands behind their backs.
他們得一直將手放在背后。