Gallogen
[化]原, 鞣花酸
??? 情景例句
Room Service. What can I do for you?
客房服務部，能為您效勞嗎？
You bet!
當然！
as Walter Sullivan has put it in his excellent book, We Are not Alone.
正如沃爾特·沙利文在其杰作《我們并不孤獨》中闡述的。