Oildag
石墨润滑剂, 胶体石墨
🗣️ 情景例句
Especially to pick it out in blue.
还特地选了一件蓝色的。
You have your choice of three flavors of ice cream.
你有3种风味的冰淇淋可选择。
What about their cat?
那她们的猫呢？