Backbones
n. 骨干( backbone的复数形式 ); 脊骨; 骨气; 脊骨状物
🗣️ 情景例句
if, and I repeat,
只要， 我重复一遍，
I often have lunch at noon.
我常常在中午吃午饭。
Yes, Miss Gao! How many are there?
可以，高老师，有多少呢？