Rxr
[医]维甲酸X受体
🗣️ 情景例句
I've been wanting to meet you for some time.
很久以来我一直想见你。
I asked him to lend me a book , but he wouldn't.
我请他把书借给我，但是他不肯。
Yesterday a beggar knocked at my door.
昨天一个乞丐来敲我的门，