名詞 bye:

1. you advance to the next round in a tournament without playing an opponent
   同義詞：pass
2. a farewell remark
   同義詞：adieu, adios, arrivederci, auf wiedersehen, au revoir, bye-bye, cheerio, good-by, goodby, good-bye, goodbye, good day, sayonara, so long

1. Good bye, and take care!
   再見，多保重！
2. Look after yourself, Bye!
   自己當(dāng)心點。再見！
3. Bye for now!
   那就再見了！

bye 也作 by

n.（名詞）
A secondary matter; a side issue.
次要的：第二位的事；較次要的問題
Sports The position of one who draws no opponent for a round in a tournament and so advances to the next round.
【體育運動】 輪空：在比賽的某一回合中未逢對手，因而直接進入下一輪比賽

<習(xí)慣用語>by the bye
By the way; incidentally.
順便地；偶然地
來源：
From by
源自 by