hairline
hairline — 形容詞
1. used to describe a crack or line that is extremely thin, often so fine that it c
極細的
形容裂縫或線條極度細窄
used to describe a crack or line that is extremely thin, often so fine that it can be hard to notice without looking closely.
A hairline crack appeared on the bathroom mirror after Rafael dropped it.
Rafael 把浴室鏡子摔到地上後，鏡面上出現了一條極細的裂縫。
collocation: hairline crack
The engineer spotted a hairline fracture in the concrete beam during the inspection.
工程師在檢查過程中發現水泥樑上有一道極細的裂縫。
collocation: hairline fracture
Karim spotted a hairline split on the antique bowl using his magnifying glass.
Karim 用放大鏡在古董碗上發現了一條極細的裂痕。
Even a hairline gap in the window frame lets cold air in during winter.
即使窗框上只有一道極細的縫隙，冬天也會讓冷空氣鑽進來。
The jeweller examined the diamond under a bright light for hairline flaws.
珠寶商在強光下仔細檢查鑽石是否有極細的瑕疵。
文法句型
hairline + noun (crack, fracture, split, gap, flaw)
用法筆記
This adjective is only used attributively — it must come directly before the noun it describes. You cannot say 'the crack is hairline'; instead say 'the crack is extremely thin' or 'it is a hairline crack.'
常見錯誤
hairline — 名詞
1. the border on a person's forehead where the hair starts to grow, which can vary
髮際線
額頭上方頭髮生長的邊緣
the border on a person's forehead where the hair starts to grow, which can vary in shape and position from person to person.
Min noticed that his hairline had moved back a little over the past few years.
Min 注意到自己的髮際線在過去幾年往後退了一些。
collocation: receding hairline
Evelyn styled her hair so that her natural hairline was visible above her forehead.
Evelyn 把頭髮往後梳，讓額頭上方的自然髮際線露出來。
The barber carefully trimmed the hair around Anthony's hairline after the haircut.
理髮師仔細修剪了 Anthony 髮際線周圍的頭髮。
Chiara has a naturally high hairline, so she often wears bangs to cover it.
Chiara 的髮際線天生就比較高，所以她常常留瀏海來遮住。
文法句型
someone's hairline
a receding / high / low / natural hairline
用法筆記
Frequently paired with descriptors such as receding, high, low, uneven, or natural. 'Receding hairline' is a very common fixed expression that describes the gradual backward movement of the hairline, often due to ageing or genetics.
常見錯誤
2. a very slender mark or break that appears on an object's surface, often resultin
細線；細裂紋
物體表面極細的裂縫或痕跡
a very slender mark or break that appears on an object's surface, often resulting from damage or wear and barely visible to the naked eye.
Lakan wiped the old photograph and saw a hairline running through the middle.
Lakan 擦拭舊照片，看到中間有一條細線穿過去。
noun sense: a visible narrow line on a surface
The watchmaker used a tool to repair the hairline on the clock's glass face.
鐘錶匠用工具修復了時鐘玻璃表面的細裂紋。
After the earthquake, tiny hairlines spread across the ceiling plaster like spider webs.
地震過後，天花板灰泥上出現許多細裂紋，像蜘蛛網一樣擴散開來。
The appraiser saw a hairline near the bottom of the vase and lowered the price.
鑑定師看到花瓶底部附近有一道細裂紋，於是調低了價格。
文法句型
a hairline + preposition + on / across / along
用法筆記
Often used in the context of damage to ceramics, glass, metal, or building materials. The plural form 'hairlines' is common when describing networks of fine cracks. Distinguish from the adjective sense (hairline crack): the noun refers to the line itself, while the adjective describes the type of crack.