Cynurin
犬尿素(由犬尿酸和辛可宁制得的一种化合物)
🗣️ 情景例句
But Saturday's my birthday.
但星期六是我的生日。
Hello. I wish to speak to Mr.Chen?
喂，我想和陈先生讲话。
Look! That girl has fallen off her bicycle.
看！那个女孩从自行车上摔下来了。