Sif
abbr. selective identification feature 选择识别特征
🗣️ 情景例句
Don't count on a salary increase this year.
别指望今年会给你加薪。
Thanks, my boy.
谢谢，小弟。
It will be a mixed school where not all the children are disabled.
它是一所混合式学校，学校里的儿童并不都是残疾人。