Pour 3 liters of water from container A into container B, and container A has the same amount of water as container B. It turns out that A holds more water than B by how many liters.
将甲容器里的3升水倒入乙容器，甲容器和乙容器的水一样多．原来甲比乙多盛水多少升．
<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<result>6</result>