Sfy
abbr. standard facility years(s) 标准设备寿命
🗣️ 情景例句
Tell me the courses you have completed in school and what is your favorite subject?
你曾修读哪些课程和你最喜欢哪一科？
Ouch! I fell down and cut my knee!
好痛呦！我跌倒割伤了膝盖！
But why did white people want to catch Africans and put them in chains?
但是为什么白人要把非洲人抓起来，戴上镣铐呢？