D-usninic acid
[化] 右旋地衣酸
🧩 词语组成解析
🗣️ 情景例句
But your price is still on the high side even if taking quality into consideration.
就算考虑质量上的因素，你们的价格还是高。
How much is this?
这个多少钱？
I'm sorry, but I don't have any with me now.
真抱歉，我现在身上没带。