bee flies 1.8 meters per second, and a swallow flies 0.7 meters more than a bee per second. How many meters does the swallow fly per second?
一只蜜蜂每秒飞行1.8米，燕子每秒钟飞行的距离比蜜蜂多0.7米．燕子每秒飞行多少米？
<gadget id="calculator">1.8 + 0.7</gadget>
<output>2.5</output>

<result>2.5</result>