短语词组短语Congestion voidance 拥塞避免voidance bad 无效subsequent voidance 嗣后无效policy voidance 保单无效obstacle voidance 避障disfurnish voidance 搬空voidance ab origine 自始无效voidance laser radar 激光防撞雷达voidance of election 当选无效 返回 voidance