arc
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US
Paraphrase
词义分析:"arc"是一个英语单词,作为名词,它的主要含义是"弧"或"弧形", 作为动词,它表示"形成弧形"。
例句:
The ball moved in an arc.(球以弧形运动。)
The rainbow formed a beautiful arc in the sky.(彩虹在天空中形成了一道美丽的弧线。)
The missile arced across the sky.(**在天空中划出了一道弧线。)
词根分析:"arc"这个单词来自于拉丁词"arcus”,意为"弓"或"弧"。
词缀分析:"arc"是一个单词的基本形式, 没有前缀或后缀。然而,可以通过添加前后缀形成新的单词,如"arcade"(拱廊),"arch"(拱形结构)等。
发展历史和文化背景:"arc"一词源于拉丁词"arcus”,古代的拉丁人用**(arcus)打猎和打仗,并在此基础上发展出多种弧形结构,如拱桥和拱顶建筑等,我所说的"弧"即是这种形状的比喻。
单词变形:"arc"作为名词它的复数形式为 "arcs",作为动词,它的过去式和过去分词是 "arced"。
记忆辅助:你可以参照"arc"的形状──弧形,形象记忆这个单词。 比如**的形状,或者彩虹的形状,这些都可以帮助记住"arc"是弧形的意思。
小故事:The sun was setting, leaving an arc of brilliant colors in the sky. (太阳落山了,在天空中留下了一道光彩夺目的弧线。)
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