arch one's eyebrows
collocation扬起眉毛
She arched her eyebrows in surprise.
她惊讶地扬起了眉毛。
拱起；使成拱形
先理解核心含义，再看它在真实句子里的用法。
拱起；使成拱形
To curve or bend into the shape of an arch.
The cat arched its back when it saw the dog.
猫看到狗时弓起了背。
使成拱形
To form into an arch shape.
用拱覆盖
To cover with an arch or arches.
arch
Base
原形
arches
3rd person
第三人称单数
arching
-ing
现在分词
arched
Past
过去式
arched
Past participle
过去分词
She arches her back.
她弓起背。
The cat arched its back.
那只猫弓起了背。
The bridge is arching over the river.
这座桥正拱跨在河上。
规则动词，过去式、过去分词加-ed，现在分词去e加-ing。
The bridge arches gracefully over the river.
这座桥优雅地拱跨在河上。
She arched her eyebrows in surprise.
她惊讶地扬起了眉毛。
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扬起眉毛
She arched her eyebrows in surprise.
她惊讶地扬起了眉毛。
弓起背
The cat arched its back when it saw the dog.
猫看到狗时弓起了背。
在…上方成拱形
Tall trees arch over the narrow path.
高大的树木在狭窄的小路上方形成拱形。
横跨…成拱形
The bridge arches across the river.
这座桥横跨河流，呈拱形。
向上拱起
The road arches upward as it approaches the hill.
道路接近小山时向上拱起。
扬起眉毛（表示惊讶、怀疑或不悦）
He arched his eyebrows when I told him the price.
当我告诉他价格时，他扬起了眉毛。
弓起背（猫受惊时的动作，也指人弓背）
The cat arched its back and hissed.
猫弓起背，发出嘶嘶声。
在……上方形成拱形；覆盖
Tall trees arch over the narrow road.
高大的树木在小路的上方形成拱形。
Use arch naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象猫弓背形成拱形，字母a像一个拱门洞，记住arch就是“使成拱形”。
语域：neutral 常见场景：建筑/工程、身体动作、日常描述 作为动词的 arch 多用于描述弯曲成拱形的动作，例如拱起背部或使桥梁上方形成拱形；在建筑和日常身体姿势表达中都比较常见，语气通常中性。
及物和不及物均可，常见搭配：arch one's back
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.