Graface
石墨-二硫化钼固体润滑剂
🗣️ 情景例句
sacrifices have to be made by one partner from time to time.
总要有一方必须不时做些牺牲。
Speed is the soldier's asset.
兵贵神速。
Many more people are 'form-blind' than colour-blind.
形盲的人数比色盲的人数要多得多。