Neomix
新霉素B硫酸盐
🗣️ 情景例句
If I fail this exam I'll fail the course.
我要是考试没通过，这门课就没学分了。
He is a doctor. He has his own practice.
他是个医生，他自己开业。
It's a beautiful day today.
今天天气真好。