The current situation of a cabbage field is a parallelogram with a base of 30 meters and a height of 20 meters. If 8 Chinese cabbages are planted per square meter, how many cabbages can be planted in this field?
一块白菜地的现状是平行四边形，底30米，高20米，如果每平方米种8棵大白菜，这块地一共可以种多少棵白菜？
<gadget id="calculator">30 * 20</gadget>
<output>600</output>

<gadget id="calculator">8 * 600</gadget>
<output>4_800</output>

<result>4_800</result>