最后的调用（尾（tail））只是调用函数，没有任何过程调用或栈维护开销。

The last call (the tail) simply invokes the function without any procedure call or stack maintenance overhead.

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你还需要其他脚本调用动画控制和武器拖尾效果并进行行为控制。

You will also need another script that calls AnimationController and WeaponTrails and controls their behavior.

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