There are over 60,000 bees in the average bee colony. A honey bee can fly up to 8km per hour, beating its wings approximately 200 times per second. 一个蜜蜂群体里通常有六万多只蜜蜂。 一只蜜蜂每小时可以飞行八公里左右 ；每秒钟摆动翅膀约两百多次。