🧩 词语组成解析
penicillin
[,pɛnɪ'sɪlɪn]
n. 青霉素,盘尼西林;
🗣️ 情景例句
May I ask how Mr. Mrs- is?
-先生(小姐)好吗?
A true friend is known in the day of adversity.
疾风知劲草,患难知友情。
I'm here.
到。