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N-COUNT
拱;拱門;拱形結(jié)構(gòu)
An arch is a structure that is curved at the top and is supported on either side by a pillar, post, or wall.
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N-COUNT
弧形;弧形運(yùn)動(dòng)
An arch is a curved line or movement.
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N-COUNT
足弓;足背
The arch of your foot is the curved section at the bottom in the middle.
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V-ERG
弓著,佝著（背）等
If you arch a part of your body such as your back or if it arches, you bend it so that it forms a curve.
例句
Don't arch your back, keep your spine straight.
別佝著背，把腰挺直。
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V-ERG
（表示驚奇或不贊同）揚(yáng)起（眉毛）
If you arch your eyebrows or if they arch, you move them upwards as a way of showing surprise or disapproval.
例句
'Oh really?' he said, arching an eyebrow.
“哦，真的嗎？”他揚(yáng)起一邊的眉毛說(shuō)。
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VERB
拱起；成弓形；呈弧形運(yùn)動(dòng)
If something arches in a particular direction, it makes a curved line or movement.
例句
I gazed up at the domed ceiling arching overhead.
我抬頭凝望著上方弧形的穹頂。
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ADJ-GRADED
神秘的；淘氣的；調(diào)皮的
An arch look is mysterious and mischievous.
例句
Both of them looked at him with that curious, slightly amused and even arch expression.
他們倆都看著他，帶著一副好奇的、有點(diǎn)覺得好笑甚至是淘氣的表情。
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ADJ-GRADED
傲慢自大的
If you say that someone is arch, you are criticizing them for talking or behaving as if they are better or more important than other people.
例句
Their attempts to be casual have so far just looked arch or patronising.
他們本想做出漫不經(jīng)心的樣子，結(jié)果反而顯得傲慢自大或自視甚高。