quantity
/ˈkwɒntətɪ/noun
(pl. -ies)
1
- mass noun the amount or number of a material or immaterial thing not usually estimated by spatial measurement量, 数量：
the quantity and quality of the fruit can be controlled
可以控制水果的数量与质量
count noun note down the sizes, colours, and quantities that you require.记下你要求的尺寸、颜色和数量。
1.1
- a certain, usually specified, amount or number of something（特定的）数量：
a small quantity of food
少量食物
if taken in large quantities, the drug can result in liver failure.
这种药如果大量服用, 会导致肝功能衰竭。
1.2
- （常作quantities）a considerable number or amount of something大量：
she was able to drink quantities of beer without degenerating into giggles
她能喝很多啤酒且不会醉得咯咯傻笑
mass noun many people like to buy in quantity.许多人喜欢大量购物。
2
- mass noun Phonetics the perceived length of a vowel sound or syllable【语音】音量。
3
- mass noun Mathematics & Physics【数, 物理】a value or component that may be expressed in numbers数量; 值, 参量。
3.1
- count noun the figure or symbol representing this代表数量（或参量）的数（或符号）。
词源
Middle English: from Old French quantite, from Latin quantitas （translating Greek posotēs）， from quantus 'how great， how much'.