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弧形;弧線
An arc is a smoothly curving line or movement.
例句
The Aleutian chain is a long arc of islands in the North Pacific.
阿留申群島是北太平洋上一長(zhǎng)串呈弧形排列的小島。
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弧
In geometry, an arc is a part of the line that forms the outside of a circle.
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VERB
成弧線;呈弧形
If something arcs in a particular direction, it makes a smoothly curving line or movement.
例句
A rainbow arced gracefully over the town.
彩虹在小城上空畫出了一道優(yōu)美的弧線。