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A mattress is the big soft flat thing you lie on in bed — the part, filled with springs, foam, feathers, or cotton.
A mattress is mattress就是 the big soft flat thing又大又軟又平的東西 you lie on你躺的 in bed在床上 the padded part也就是有填充物的那一層 filled with springs, foam, feathers, or cotton裡面裝彈簧、泡棉、羽毛或棉花
Keep it apart from the other bed words: the bed is the whole thing, the bed frame is the wooden or metal part underneath, the mattress sits on the frame, and the sheet goes over the mattress.
Keep it apart from the other bed words要把它跟其他床的相關字分清楚 the bed是bed（床） is the whole thing整體 the bed frame是bed frame（床架） is the wooden or metal part underneath是下面木頭或金屬做的部分 the mattress是mattress（床墊） sits on the frame鋪在床架上 the sheet是sheet（床單） goes over the mattress則蓋在床墊上面
It is countable: a mattress, two mattresses (note the spelling — double t, double s, and -es in the plural). Common companions: a hard/firm mattress, a soft mattress, a spring mattress, a memory-foam mattress, a double mattress, an air mattress (the one you blow up for guests or for camping).
It is countable這個字是可數的 a mattress, two mattresses就是a mattress、two mattresses note the spelling注意拼法 double t, double s, and -es in the plural雙t、雙s、複數加-es Common companions常見的搭配有 a hard/firm mattress是a hard/firm mattress（硬床墊） a soft mattress是a soft mattress（軟床墊） a spring mattress是a spring mattress（彈簧床墊） a memory-foam mattress是a memory-foam mattress（記憶泡棉床墊） a double mattress是a double mattress（雙人床墊） an air mattress是an air mattress（充氣床墊） the one you blow up for guests or for camping就是招待客人或露營時吹氣用的那種
People also talk about turning or flipping a mattress — turning it over so it wears evenly. In Taiwan you will hear the brand-ish word 'spring mattress' a lot; note that in English the standard mattress is assumed to have springs, so you only say 'spring mattress' when you are it with foam or air.
People also talk about大家也會說 turning or flipping a mattress turning或flipping a mattress turning it over so it wears evenly就是把床墊翻面讓它耗損得平均一點 In Taiwan在台灣 you will hear你會常聽到 the brand-ish word 'spring mattress' a lot「spring mattress」這種偏品牌感的說法 note that但要注意 in English在英文裡 the standard mattress is assumed to have springs標準的mattress本來就被認為有彈簧 so you only say 'spring mattress'所以只有才會特別說spring mattress when you are contrasting it with foam or air當你要跟foam或air做對比時
組成The origin is a nice surprise: it comes, through Old French, from Arabic maṭraḥ, 'a place where something is thrown down' — from a verb meaning 'to throw'. Europeans met the habit of throwing cushions on the floor to lie on when they met the Arab world, and the word travelled home with the idea. So a mattress is, at heart, 'the thing thrown down to lie on'.
原始詞典資料4 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
mattressnoun/ˈmætɹɪs/
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A pad on which a person can recline and sleep, usually having an inner section of coiled springs covered with foam or other cushioning material then enclosed with cloth fabric.
- 2
A form of retaining wall used to support foundations or an embankment
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A form of lagging, in particular for boilers.
- Spun glass mattresses are used for lagging the boiler, which has three Ross pop safety valves on the front ring.
- The boiler and firebox are lagged with a lightweight Fibreglass mattress.
mattressverb/ˈmætɹɪs/
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To cover with a thick layer, like a mattress; to blanket.
- A comfortable litter of pine needles had mattressed the ground and spreading branches had been a canopy overhead.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。