A rabbit runs 41 kilometers per hour, and a swift flies four times faster than a rabbit. About how many kilometers per hour does this swift fly?
一只兔子每小时跑41千米，一只雨燕的飞行速度是一只兔子的4倍．这只雨燕每小时大约飞行多少千米？
<gadget id="calculator">41 * 4</gadget>
<output>164</output>

<result>164</result>