Umbelliprenin
(=umbelliferone farnesyl ether)伞花烯片, 伞形酮金 合欢醚, 伞形花醚
🗣️ 情景例句
Is that it?
就这些吗？
Let me give you a little friendly advice.
让我给你一些好意的劝告。
Please sign a copy of our Sales Contract No.156 enclosed here in duplicate and return to us for our file.
请会签第156号销售合同一式两份中的一份，将它寄回我方存档。