Tetrachyrin
羥基甲基降貝殼杉烯酸內酯
??? 情景例句
Ellen.
Ellen。
A wise man thinks all that he says,a fool says all that he thinks.
聰明人想了才說，愚笨的人想著就說。
Aren't you going to admire my new hat?
你難道不想夸夸我的新帽子嗎？