Each person drinks 250ml of juice, and how many people can drink 1 liter of juice on average.
每人喝250毫升果汁，1升果汁正好可以平均分给多少个人喝．
<gadget id="calculator">1_000 / 250</gadget>
<output>4</output>

<gadget id="calculator">1 * 4</gadget>
<output>4</output>

<result>4</result>