名词中文翻译
中文翻译：旋转箭头
同义词：
['rotating arrow', 'rotational arrow']
例句：
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1.The scientist used a rotation arrow to measure the angle of the object.
科学家用旋转箭头来测量物体的角度。
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2. The arrowhead on the spear was made from a piece of bone.
长矛上的箭头是由一块骨头制成的。
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3.The arrow flew through the air and hit the target.
箭矢在空中飞行，击中了靶心。