副詞 thereby:

1. by that means or because of that

1. Styled with distinctively rounded edges so as to reduce wind drag and thereby increase fuel efficiency. Used especially of automobiles and vans.
   流線型的具有獨(dú)特圓邊款式以減少風(fēng)阻從而提高燃料效率的，用以特指汽車或輕型汽車的款式
2. He became a citizen, thereby gaining the right to vote.
   他成為公民，并因此獲得了選舉權(quán)。
3. Thereby hangs a tale.
   其中必有文章。