collision双语例句So we have a collision.那么我们有一个碰撞
But have no fear, there is no risk of collision, at least for the next century or so (forecasting much beyond that is tricky).但是至少到下个世纪为止无需担心有碰撞的危险（也没有预报的那么棘手）
Neveralter the course without my orders unless for avoided the risk of collision.没有我的命令不得改变航向，除非为了避免碰撞危险
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