Oildag
石墨润滑剂, 胶体石墨
🗣️ 情景例句
If you keep eating you'll be as big as a house.
如果你一直吃下去，你会胖得像栋房子。
Would you care to answer my question on the warranty?
你可以回答我有关保证的问题吗？
You can enlarge your knowledge and learn some English at the same time.
你可以扩大你的知识面，同时又学习了英语。