Actiline
[化] 新霉素B
🗣️ 情景例句
What is the most important thing for you to be happy?
你认为对你来说开心最重要的是什么？
A friend in need is a friend indeed.
患难朋友才是真朋友。
The first records the arrival of longitudinal vibrations.
首先记录下的是纵向波的到达；