Dinaphthyl
二萘(基)
??? 情景例句
No? You didn't take it?
沒有？ 你沒有接受？
And finally, I want to express my appreciation to all of my friends for their support.
最后，我想感謝所有支持過我的朋友。
Fortunately, however, ancient men made tools of stone, especially flint,
然而， 幸運的是，遠古人用石頭制作了工具，特別是用燧石，