Question

arc n.综合症状;弧（度）;天穹;电弧，弧光。;vi.形成拱状物;循弧线行进;abbr.American Red Cross. 美国红十字会; third:arcs~done:arced~ing:arcing~past:arced~

Accepted Answer

英[ɑ:k]  美[ɑrk] N-COUNT弧形；弧线An arc is a smoothly curving line or movement.例：The Aleutian chain is a long arc of islands in the North Pacific.阿留申群岛是北太平洋上一长串呈弧形排列的小岛。N-COUNT弧In geometry, an arc is a part of the line that forms the outside of a circle.VERB成弧线；呈弧形If something arcs in a particular direction, it makes a smoothly curving line or movement.例：A rainbow arced gracefully over the town.彩虹在小城上空画出了一道优美的弧线。

单词	arc
音标	英[ɑ:k] 美[ɑrk]
解释	n.综合症状;弧（度）;天穹;电弧，弧光。;vi.形成拱状物;循弧线行进;abbr.American Red Cross. 美国红十字会;
例句	N-COUNT 弧形；弧线 An arc is a smoothly curving line or movement. 例：The Aleutian chain is a long arc of islands in the North Pacific.阿留申群岛是北太平洋上一长串呈弧形排列的小岛。 N-COUNT 弧 In geometry, an arc is a part of the line that forms the outside of a circle. VERB 成弧线；呈弧形 If something arcs in a particular direction, it makes a smoothly curving line or movement. 例：A rainbow arced gracefully over the town.彩虹在小城上空画出了一道优美的弧线。
变形	third:arcs~done:arced~ing:arcing~past:arced~

Arc Line N Count Smoothly Curving Movement 英[ɑ:K 美[ɑrk