a very thin sheet of metal

• thin aluminum used for wrapping food
• a thin metal backing behind a gem to enhance brilliance

非常薄的金属片

• 用于包裹食物的铝箔
• 镶嵌在宝石背后的薄金属层以增强亮度

a character who contrasts to highlight another

• anything that emphasizes traits by contrast

文学或戏剧中通过对比凸显另一角色特征的角色

• 通过对比来强调某事物特征的事物

a light fencing sword with a blunted tip

尖端钝圆的轻型击剑用剑（花剑）

a thin transparent sheet for overhead projection; a transparency

用于投影的薄透明片；投影透明片

a collectible trading card with a metallic glossy finish

具有金属光泽效果的收藏卡

a stylized leaf or flower motif, as in trefoil or quatrefoil

风格化的叶或花形图案，如三叶形或四叶形

clipping of hydrofoil or airfoil; a hydrofoil craft or a wing profile

hydrofoil 或 airfoil 的简称；指水翼船或翼型

to cover or wrap with foil

用铝箔覆盖或包裹

to prevent the success of; to frustrate or thwart

挫败；阻止成功

to expand binomials using the FOIL rule (First, Outer, Inner, Last)

用 FOIL 规则（First, Outer, Inner, Last）展开二项式

to ride or travel on a hydrofoil or foil board

使用水翼船或水翼板滑行