Valangin's solution
[医] 瓦兰金氏溶液(亚砷酸溶液)
🧩 词语组成解析
🗣️ 情景例句
Then monthly rent is $650, with a $300 security deposit.
月租是 650 美元，再加上 300 美元押金。
Did you sell it to him yourself?
你自己亲自卖给他吗？
That's international practice. We can't break it.
这是国际惯例，我们不能违背。