Umbelliprenin
(=umbelliferone farnesyl ether)伞花烯片, 伞形酮金 合欢醚, 伞形花醚
🗣️ 情景例句
Two hours from now.
从现在起还有两个小时。
No answer is also answer.
不回答也是一种回答。
you may decide to take an aggressive approach --
你可能会采取一种积极进取的方式