Sif
abbr. selective identification feature 选择识别特征
🗣️ 情景例句
You have to expect the unexpected in Shanghai.
在上海，你总会有意想不到的收获。
Where did you visit?
你去参观了哪些地方？
My French isn't very good but it is enough to get by.
我的法语不是太好，但应付一下也够了。