好词典
foils
UK //fɔɪlz//US //fɔɪlz//
词源
源自中古英语foilen，来自古法语fouler（践踏），最终源自拉丁语fullo（漂洗工）。
noun
❶ 金属薄片，通常指铝箔等用于包装或烹饪的薄金属材料。
“She wrapped the sandwich in aluminum foils to keep it fresh.”
（她用铝箔纸包住三明治以保持新鲜。）
“The artist used gold foils to decorate the painting.”
（艺术家用金箔装饰这幅画。）
❶ 击剑运动中使用的轻剑，特指花剑或佩剑。
“The fencers practiced with their foils in the gym.”
（击剑运动员在体育馆用花剑练习。）
“He won the match with a quick thrust of his foil.”
（他用花剑快速刺击赢得了比赛。）
同义词:metal sheets, blades, swords
verb
❶ 挫败某人的计划或行动，使其无法成功。
“The security system foiled the thief's attempt to break in.”
（安保系统挫败了小偷的入室企图。）
“Her quick thinking foiled their clever plan.”
（她的快速思考挫败了他们聪明的计划。）
同义词:thwart, frustrate, prevent
常见短语
serve as a foil to — 通过与某人或某物形成对比，从而突出另一方的特点。
“Her cheerful personality serves as a perfect foil to his serious nature.”
（她开朗的性格与他严肃的本性形成完美对比。）