Obtusin
二羥基三甲氧基甲基葸二酮, 純菇菌素
??? 情景例句
I'm sorry. For these large orders, we insist on payment by L C.
對不起。對于這樣金額大的訂單，我們堅持用信用證支付。
It's a piece of cake.
這很容易。
Yes.please be careful when you send it out.
是的，出貨時請小心些。