- (also tinfoil)(British English also silver foil)[uncountable]
metal made into very thin sheets that is used for covering or wrapping things, especially food （尤指包装食物等用的）箔 - (British English)
aluminium foil 铝箔 - (North American English)
aluminum foil 铝箔 Cover the fish loosely with foil and bake for 30 minutes. 用锡纸把鱼松松地盖上，烤30分钟。 I wrapped the sandwiches in kitchen foil. 我用箔纸将三明治包起来。
Oxford Collocations Dictionaryadjective- aluminium
- aluminum
- gold
- …
- piece
- sheet
- roll
- …
- cover something with
- wrap something in
- (British English)
- [uncountable]
paper that is covered in very thin sheets of metal 箔纸（覆有箔的纸） Oxford Collocations Dictionaryadjective- aluminium
- aluminum
- gold
- …
- piece
- sheet
- roll
- …
- cover something with
- wrap something in
- [countable] foil (for somebody/something)
a person or thing that contrasts with, and therefore emphasizes, the qualities of another person or thing 陪衬者；陪衬物 The pale walls provide a perfect foil for the furniture. 浅色的墙壁完全衬托出家具的特色。 His mellow guitar technique is the ideal foil for her soaring voice. 他圆润的吉他技巧是她高亢嗓音的理想陪衬。
Extra ExamplesShe has used mosses as a foil for the bright red flowers in the bed. 她用苔藓来衬托花坛中红艳艳的花。 The couple provided the perfect foil for one another. 这对夫妇非常般配。
Oxford Collocations Dictionaryadjective- good
- ideal
- perfect
- …
- be
- provide
- as a foil
- foil for
- foil to
- …
- [countable]
a long thin light sword used in the sport of fencing （击剑运动用的）花剑 
Word Originnoun senses 1 to 3 Middle English: via Old French from Latin folium ‘leaf’. noun sense 4 late 16th cent.: of unknown origin.