Petroxolin
液体石蜡
🗣️ 情景例句
Until today, I was never really interested in medicine.
直到今天 ，我才对医学真正感兴趣。
I have received a letter from my cousin.
我收到了我表兄的信。
Don't be uneasy about the consequence.
不必为后果忧虑不安。