arc

弧、弧形、弧线

The ball traveled in a high arc over the fence.

球以高高的弧线飞过围篱。

故事线、发展历程

The character's arc across the three seasons feels convincing.

这个角色三季下来的成长历程很有说服力。

电弧、弧光

An arc jumped between the two electrodes with a loud crack.

两个电极之间跳出电弧，发出很大的爆裂声。

呈弧形移动、划出弧线

The rocket arced across the night sky and vanished.

火箭划出一道弧线飞越夜空后消失。