Sif
abbr. selective identification feature 选择识别特征
🗣️ 情景例句
From what Robbie and Alexandra have told me,
从Robbie和Alexandra告诉我的情况， 看来
I know the boy whose father is a merchant.
我知道那个男孩的父亲是商人。
The temptation to steal is greater than ever before -- especially in large shops.
偷窃的诱惑力比以往任何时候都更强烈 -- 特别是在大的商店里。