Tribometer
n. 摩擦计
🗣️ 情景例句
Right.
对。
Health and understanding are the two great blessing of life.
健康和融洽是人生两大幸事。
While the men had been working inside the ship, the air-line had been giving off oxygen.
当工人们的在船舱里干活时，供气管一直在排放氧气。