Graface
石墨-二硫化钼固体润滑剂
🗣️ 情景例句
She is constantly in love.
她不停在恋爱。
Have you taken a train?
你坐过火车吗？
Settlers made agreements with Native American cheifs but always broke them afterwards.
殖民者同美洲土著人的首领达成了协议，但是这些协议随后总是被撕毁。