Methylenum coeruleum
[医] 亚甲蓝, 美蓝
🗣️ 情景例句
why you have so many problems with math.
为什么你在数学方面有那么多问题。
No trouble at all.
一点儿也不麻烦。
Have your mechanics finished yet?
你们的机械师修好了吗？