R factors
[医] R因子, 叶酸
🧩 词语组成解析
n. 因素（factor的复数）
🗣️ 情景例句
I ventured to correct the teacher's mistake.
我鼓起勇气去纠正老师的错误。
An inch in a miss is as good as an ell.
错无分大小，有错皆不好。
You're going out of your way for us, I believe.
我相信这是对我们的特殊照顾了。