Fk
abbr. 外键（foreign key）
🗣️ 情景例句
Where can I put the coin?
硬币要放在哪儿？
I'd like to have a seat by the window.
我要一个靠窗的座位。
If Tom cannot keep his promise, he'll lose face.
如果汤姆不能信守诺言，他就会丢面子。