Erethin
[医] 兴奋素(结核菌素毒质)
🗣️ 情景例句
I would lke to place an order please.
我要下定单。
I know what you mean.
我了解你的意思。
The firm closed down because there wasn't enough demand for its product.
工厂关门了，因为产品供过于求。