Oaa
abbr. oxaloacetic acid 酰基乙酸
🗣️ 情景例句
When they come out, we'll get it.
一出来， 我们就会拿到手。
I don't allow my children to play with toy guns.
我不让自己的孩子玩玩具枪。
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。