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
No, I could never agree to sign this contract.
不，我无论如何也不会签这份合同。
The staff in this shop is very helpful.
这家商店的店员很热心。
That is all he can have now.
这是他现在所能得到的一切。