Graface
石墨-二硫化钼固体润滑剂
🗣️ 情景例句
Football players are always popular with the ladies.
足球队员往往很讨女生的喜爱。
Once an opportunity slips away, it is gone for good.
机会一旦错过，永远不会再来。
I felt very nervous when I went into his office.
我走进他的办公室，感到非常紧张。