Hrf
abbr. human rheumatoid factor 人类风湿因子
🗣️ 情景例句
He makes a good living.
他过得很优裕。
When love puts in, friendship is gone.
爱情入，友谊出。
Oh! She's falling off her bike. I hope she didn't hurt herself.
噢！她正从自己的自行车上跌落下来。我希望她没有摔伤。