Oildag
石墨润滑剂, 胶体石墨
🗣️ 情景例句
We have a wide connection in U.S.A.
我们在美国各地有广泛业务关系。
I picked up my cards.
我捡起了我的卡片。
Don't worry. But you'd better take him to the nurse, and she'll give him some pills.
放心吧。你最好带他到护士那，她会给他一些药片的。