Oildag
石墨润滑剂, 胶体石墨
🗣️ 情景例句
I remember your parents' first house very well.
我还清楚记得你父母的第一栋房子。
Up to you.
你说了算。
Imagine a star up t twenty times larger, brighter, brighter and hotter than our own sun.
设想一下，一颗恒星比我们的太阳还要大，还要亮，还要热20倍，