Sif
abbr. selective identification feature 选择识别特征
🗣️ 情景例句
They mean long life. I remember you liked the calligraphy at the Palace Museum.
长命百岁。我记得上次去故宫，你特别喜欢书法。
My underwear is black.
我的内衣是黑色的。
That's right.we have to work out the final price.
是的，我们得把最后的价格敲定。