foam
foam — 名詞
1. A layer of tiny bubbles that appears on top of a liquid when it is shaken, heate
泡沫
液體表面的細小氣泡
A layer of tiny bubbles that appears on top of a liquid when it is shaken, heated, or mixed with soap.
Dahlia watched white foam form on her hot chocolate as she stirred it with a spoon.
Dahlia 攪拌熱巧克力時，看見白色的泡沫浮在飲料表面。
collocation: 'white foam' for bubbles on drinks
Waves crashed against the cliffs, leaving a trail of foam that drifted back out to sea.
海浪拍打懸崖，留下一縷泡沫漂回海中。
Ritu poured soda too fast and foam spilled over the glass onto the counter.
Ritu 倒汽水倒得太快，泡沫從杯口溢出，流到廚房檯面上。
Asher saw a layer of foam on the river near the factory and worried the water might be polluted.
Asher 注意到工廠附近的河面上有一層泡沫，擔心河水可能遭到汙染。
A thick blanket of foam covered the soup after Shirin boiled it too long.
Shirin 把湯煮得太久，湯麵上積了厚厚一層泡沫。
用法筆記
Typically uncountable — 'a foam' is not used for naturally occurring bubbles. Use quantifiers like 'a layer of foam' or 'a patch of foam'.
常見錯誤
2. A creamy substance made of tiny air bubbles trapped together, sold as a product
泡沬用品
用於清潔或刮鬍的泡沫產品
A creamy substance made of tiny air bubbles trapped together, sold as a product for shaving, washing, or firefighting.
Christopher squeezed a handful of shaving foam and spread it gently over his cheeks and chin.
Christopher 擠出一把刮鬍泡，輕輕抹在臉頰和下巴上。
collocation: 'shaving foam' for grooming product
Pim added too much bubble bath to the tub, and thick foam piled up above the water line.
Pim 加了太多泡泡浴露到浴缸裡，厚厚的泡沫堆積在水面之上。
Firefighters aimed a hose of special foam at the oil fire to smother the flames.
消防員對著油火噴灑特殊泡沬，將火焰撲滅。
Léa uses a gentle face wash that turns into soft foam and does not dry out her skin.
Léa 使用一種溫和的洗面乳，會變成柔軟的泡沬，而且不會讓皮膚變乾。
- lather
specifically the foam produced when soap mixes with water on skin; more common for washing hands or shaving
用法筆記
Distinguish from sense 1: this refers to a manufactured product (shaving foam, firefighting foam) rather than naturally occurring bubbles. Often used with a noun modifier describing its purpose.
常見錯誤
3. A lightweight, soft material filled with many tiny air pockets, used inside cush
泡棉
用於填充家具的輕軟多孔材料
A lightweight, soft material filled with many tiny air pockets, used inside cushions, mattresses, seats, and packaging to provide comfort or protection.
Benjamin sat on the old sofa and felt the foam inside the cushion sag under his weight.
Benjamin 坐在舊沙發上，感覺坐墊裡的泡棉在他的體重下塌陷了。
collocation: 'foam inside [object]' for filling material
Amelia cut foam sheets to fit inside the box and protect a ceramic bowl.
Amelia 剪了幾片泡棉放進盒子裡，用來保護一個陶瓷碗。
The new mattress is made of memory foam that changes shape to fit your body while you sleep.
新床墊是記憶泡棉做的，睡覺時會隨著你的身體改變形狀。
Eshe placed foam padding around the edges of a wooden table before wrapping it.
Eshe 在木桌邊緣鋪上泡棉襯墊，然後才包裝起來。
- padding
broader term that includes foam, cotton, or any soft filling; more general
- cushioning
focuses on the function of absorbing shock; can be made of various materials
用法筆記
Commonly used as a modifier before another noun: foam mattress, foam cushion, foam seat. Unlike senses 1 and 2, this sense can occasionally be countable when referring to types of foam, such as 'memory foams' or 'high-density foams'.
常見錯誤
foam — 動詞
1. When a liquid foams, small air bubbles form inside it and rise to the surface, c
起泡
液體內部產生大量氣泡
When a liquid foams, small air bubbles form inside it and rise to the surface, creating a layer of foam.
Femi watched the milk foam as it heated up in the pot on the stove.
Femi 看著牛奶在爐上的鍋子裡加熱起泡。
pattern: 'milk foam(s)' for heated liquids
The water began to foam when Trang added soap to the bucket and scrubbed the floor.
當 Trang 在桶子裡加了肥皂並擦地板時，水開始起泡。
The river foamed where it rushed over sharp rocks at the bottom of the hill.
河水沖過山腳下尖銳的岩石時不斷起泡。
Manuela shook the soda bottle hard, and when she opened it the liquid foamed up and spilled.
Manuela 用力搖晃汽水瓶，打開時液體冒出大量泡沫，噴了出來。
Astrid saw the dishwater foaming as she squeezed more detergent into the sink.
Astrid 看到洗碗水開始起泡，因為她又往水槽裡擠了一些清潔劑。
- settle
when bubbles disappear and the liquid becomes still again
文法句型
liquid + foam(s) / is foaming
用法筆記
Intransitive only — the liquid produces foam by itself. The phrasal verb 'foam up' adds emphasis on the action happening quickly or excessively.
常見錯誤
2. To release bubbles of saliva from the mouth, usually because of illness or extre
口吐白沫
因生病或憤怒而從口中冒出泡沫唾液
To release bubbles of saliva from the mouth, usually because of illness or extreme anger; almost always used in the expression 'foam at the mouth'.
A stray dog lay on the pavement foaming at the mouth, so someone called a vet for help.
一隻流浪狗躺在人行道上口吐白沫，於是有人打電話叫獸醫來幫忙。
literal: illness in animals
Arjun was practically foaming at the mouth when someone took his parking spot.
有人佔了 Arjun 的停車位時，他簡直氣得口吐白沫。
figurative: extreme anger
Romi foamed at the mouth and collapsed during the hike, so the guide called for help.
Romi 在健行途中口吐白沫後倒地，嚮導於是呼叫救援。
Hassan's grandfather told a story about a rabid fox foaming at the mouth in the village square.
Hassan 的祖父講了一個故事，說有一隻得了狂犬病的狐狸在村莊廣場上口吐白沫。
- froth at the mouth
interchangeable with 'foam at the mouth', though 'froth' is slightly less common in modern English
文法句型
foam at the mouth
be foaming at the mouth
用法筆記
Almost always used in the fixed phrase 'foam at the mouth' or its progressive form 'foaming at the mouth'. Can be used literally (illness such as rabies or poisoning) or figuratively (extreme anger). The figurative use is informal and emotionally intense.