Sif
abbr. selective identification feature 选择识别特征
🗣️ 情景例句
I am so touched. The two of you are really something.
我太感动了。你们俩个真是了不起。
Yes, I worked from early morning until late at night.
是,我从清早工作直到半夜。
Good morning. Mr. Croft.
早上好，克罗夫特先生。