1
arch [obj]
常用进行时态，主语多为人或动物。
The gymnast is arching her back during the routine.
体操运动员在动作中弓起她的背。
[机] 拱作用，架拱
archings — plural of arching
先理解核心含义，再看它在真实句子里的用法。
[机] 拱作用，架拱
the action or process of forming an arch, especially in structures
The gymnast is arching her back during the routine.
体操运动员在动作中弓起她的背。
结构的拱形部分
The arched part of a structure.
The cat is arching its back in fear.
那只猫害怕地弓起了背。
The arching branches created a natural canopy over the path.
拱起的树枝在小路上方形成了一个天然的遮篷。
The arching of the old bridge was carefully measured by the engineers.
工程师们仔细测量了这座老桥的拱度。
常用进行时态，主语多为人或动物。
The gymnast is arching her back during the routine.
体操运动员在动作中弓起她的背。
不及物用法，后常接介词短语表示位置。
The cat is arching under the table.
猫在桌子底下弓着身子。
不可数名词，常用于描述结构或身体的弓形。
The arching of the bridge creates a graceful curve.
桥的拱形形成了一道优美的曲线。
Not this
He arching his back.
Use this
He is arching his back.
现在进行时必须使用be动词+现在分词结构，中文学习者常因汉语无对应结构而遗漏be动词。
Not this
The engineer studied the archings of the bridge.
Use this
The engineer studied the arching of the bridge.
名词‘arching’指拱作用或拱形状态时为不可数名词，不应加复数词尾‘-s’。
Choose the next layer that will help you use archings with more confidence.
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Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
Use archings naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
动词为arch的现在分词；名词常作不可数，指拱形结构或拱作用；形容词仅作定语。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.