Fk
abbr. 外键（foreign key）
🗣️ 情景例句
and cheese sandwiches for lunch.
和起士三明治当午餐。
An open door may tempt a saint.
一扇开著的大门可诱惑一个圣徒。
When my mother had died after a tragic accident, he did not quickly recover from the shock and loneliness.
当时我母亲在一次事故中惨死，父亲未能很快从悲痛与孤独中恢复过来。