Fk
abbr. 外键（foreign key）
🗣️ 情景例句
My doctor advised me to give up smoking without delay.
医生劝我立即戒烟。
My son has outgrown these trousers.
我儿子已经长的穿不了这条裤子了。
Are you sure you sent the full order?
你确定货全部都出来了？