他们没速度。
是没做完作业的可就没这么舒服了，只能在冰冷的教室里先完成作业，他们那种速度，等完成作业就已经是快要上课了。
Is no job that can be done not so comfortable, and only in the cold before the completion of classroom work, they are the kind of speed, such as the completion of work is going on to class.
这个算法没考虑捕食者和猎物各自的航向（他们移动的方向）和速度。
This algorithm pays no attention to the predator and prey's respective headings (the direction in which they're traveling) or their speeds.
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