1. The drug was produced in quantity and became cheaper.
    于是这种药投入大批量生产，价格也比以往便宜。

2. The Russian dinner that evening was an unbelievable quantity of food.
    那天晚上苏联的晚餐有着惊人丰盛的食物。

3. Quality matters more than quantity.
    质重于量。

4. He put a large quantity of vermouth, both sweet and dry, into a pitcher of ice, added a smaller amount of gin, stirred the concoction rapidly, and poured it out.
    他把大量味美思酒，甜酒和干酿都有，倒入一个盛着冰块儿的大水罐中，加了少量的杜松子酒，快速将混合物调和，然后再倒出来。

5. Suppose every sensor gives perfectly accurate readings of temperature, pressure, humidity, and any other quantity a meteorologist would want.
    再假定每个传感器都极极端准确地读出了温度、气压、温度和气象学家需要的任何其他数据。