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历史：
quantity ★★★☆☆
1.N-VAR 可变名词数量;量 A quantity is an amount that you can measure or count.

  • ...a small quantity of water.

    少量的水

  • ...vast quantities of food...

    大量食品

  • The bowl needs to be re-frozen after each use, so it takes a long time to make a large quantity...

    这种碗每次使用之后都需要重新冷冻，因此要做大份食物时需要很长时间。

  • Cheap goods are available, but not in sufficient quantities to satisfy demand...

    有一些廉价的商品，但是数量不足以满足需求。

  • Uranium is available in considerable quantity from various areas of the world.

    可世界上许多地区都有相当数量的铀储量。

2.N-UNCOUNT 不可数名词大量;大宗；大批 Things that are produced or available in quantity are produced or available in large amounts.

  • After some initial problems, acetone was successfully produced in quantity...

    解决了最初的一些问题之后，终于成功地制造出了大量丙酮。

  • But even with those databases, the sheer quantity of data can still cause problems.

    可是即便有了那些数据库，数据的数量之大仍然会带来问题。

3.N-UNCOUNT 不可数名词(尤指和质量相对的)数量 You can use quantity to refer to the amount of something that there is, especially when you want to contrast it with its quality.

  • ...the less discerning drinker who prefers quantity to quality...

    不求质、但求量的不那么识货的饮酒者

  • In terms of quantity, production grew faster than ever before.

    从数量上看，产量增长的速度比以往任何时期都要快。

4.PHRASE 短语未知量;未知数 If you say that someone or something is an unknown quantity, you mean that not much is known about what they are like or how they will behave.

【搭配模式】：v-link PHR

  • He is an unknown quantity for his rivals.

    对于对手们而言，他是个未知数。

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