Spf
abbr. 防晒系数（Sun Protect Factor）；存储保护特征（Storage Protect Feature）
🏥 医学释义
荧光分光光度计
🗣️ 情景例句
Didn't you give them to Richard?
你不是把它们交给Richard了吗？
We guarantee quality products which can stand fierce competition.
我们保证提供能经得起激烈竞争的高质量产品。
They had a definite meaning, for they were as near as early man could get to writing.
它们有着一定的含义，因为它们已接近古代人的文字形式。