友敵 frenemy

　　俗語說：“在家靠父母，出門靠朋友。”朋友在每個人的一生中都扮演著重要的角色，不過具體是什么角色還要看朋友的屬性來分，有些是bosom friend（知己），福禍與共；有些是acquaintance（泛泛之交），點頭就過；還有一些則是frenemy（友敵），笑臉相迎，背后暗戰。

　　"Frenemy" (alternately spelled "frienemy") is a portmanteau of "friend" and "enemy" which can refer to either an enemy disguised as a friend or to a partner who is simultaneously a competitor. The term is used to describe personal, geopolitical, and commercial relationships both among individuals and groups or institutions. The word has appeared in print as early as 1953.

　　友敵（frenemy，有時也拼做frienemy），是friend（朋友）和enemy（敵人）兩個詞組合而成的，指偽裝成朋友的敵人或者互相競爭的同伴。這個詞1953年就已經出現，用來指代個人及群體組織之間的人際關系、地緣政治關系以及商業關系。

　　For example:

　　Zack is John's frenemy. They get along in the office but both of them work on internal competing teams.

　　扎克和約翰是友敵。他們在辦公室相處得不錯，同時又在團隊內部相互競爭。