Marcothix
聚酯树酯(商品名)
🗣️ 情景例句
A friend in need is a friend indeed.
患难朋友才是真正的朋友。
What kind of quality control do you have?
你们用什么办法来控制质量呢？
I've been working so hard recently that I haven't had any time for collecting new stamps.
最近我的学习一直很紧张，没有时间收集新邮票。