Coproporphyrin
粪卟啉
🗣️ 情景例句
The price. Isn't it possible to give us even a little more discount?
价格问题。难道不能多打点折扣吗？
His ear is wounded, Does it hurt?
他的耳朵受伤了，疼不疼？
If explosives are used, vibrations will cause the roof of the mine to collapse.
如果用炸药爆破，震动会引起矿顶塌落。