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TOEFL IELTS BNC: 6611 COCA: 5923

arc noun [ C ] CURVE

the shape of part of a circle, or other curved line弧;弧状;弧线;弧形

The ball rose in a high arc and fell behind the boundary line.球在空中高高地划了一条弧线落在边线外。

arc noun [ C ] ELECTRICITY

a powerful flow of electricity that goes across a space between two points电弧,弧光

arc verb CURVE

[ I ] to move in the shape of an arc循弧线行进;做弧形运动

The rocket arced gracefully into the sky.火箭升空,在空中划出一条优美的弧线。

arc verb ELECTRICITY

[ I usually + adv/prep ] to make an electric arc形成电弧


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