Medullitis
骨髓炎
🗣️ 情景例句
and do it while I talk to my secretary.
我去和秘书说个话。
Every time the sheep bleats it loses a mouthful.
羊每叫一次，就少吃一口。
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。