A bottle of drink can exactly fill 4 identical glasses, and the capacity of each glass is the size of the drink bottle.
一瓶饮料正好能倒满4个相同的玻璃杯，每个玻璃杯的容量是饮料瓶的多少．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>