Pour a bottle of juice into two glasses just to the full. The first cup poured (1/3) of these juices, and the second cup poured 400ml. How many milliliters is this bottle of juice?
把一瓶果汁倒在两个杯子里刚好倒满．第一杯倒了这些果汁的(1/3)，第二杯倒了400毫升．这瓶果汁有多少毫升？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">400 / (2/3)</gadget>
<output>600</output>

<result>600</result>