Sif
abbr. selective identification feature 选择识别特征
🗣️ 情景例句
And I'm torn.
但我不知如何取向。
Give as good as one gets.
以其人之道，还治其人之身。
At the base of the gold cap, the words 'made in the U.S.A' had been nearly inscribed.
笔帽下方整齐地刻有“美国制造”字样。