A hummingbird can flap its wings 68 times per second, and a swallow can flap its wings 20 times per second. According to this calculation, how many more times per minute can a hummingbird flap its wings than a swallow?
一只蜂鸟每秒钟可拍动翅膀68次，一只燕子每秒钟可拍动翅膀20次，照这样计算，一只蜂鸟每分钟比一只燕子多拍动翅膀多少次？
<gadget id="calculator">68 * 60</gadget>
<output>4_080</output>

<gadget id="calculator">20 * 60</gadget>
<output>1_200</output>

<gadget id="calculator">4_080 - 1_200</gadget>
<output>2_880</output>

<result>2_880</result>