foil
noun uk/fɔɪl/ us/fɔɪl/
(METAL SHEET)
[ U ]（尤指用来包裹食品以保鲜的）箔
a very thin sheet of metal, especially used to wrap food in to keep it fresh
tin foil 锡箔
UK aluminium foil 铝箔
(COMPARISON)
[ C ]陪衬物，衬托
something or someone that makes another's good or bad qualities more noticeable
The older, cynical character in the play is the perfect foil for the innocent William. 剧中年迈、愤世嫉俗的人物角色正好衬托出威廉的天真单纯。
(SWORD)
[ C ]（击剑运动用的）花剑
a thin, light sword used in the sport of fencing
foil
verb [ T ] uk/fɔɪl/ us/fɔɪl/
挫败，阻止，制止
to prevent someone or something from being successful
The prisoners' attempt to escape was foiled at the last minute when police received a tip-off. 由于警方收到密报，囚犯的越狱企图在最后一刻被挫败。
Synonym: thwart