Learning curve theory states that as the quantity of items produced doubles, costs decrease at a predictable rate.

学习曲线理论说随着生产的产品数量翻倍，成本以可估的比率下降。

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Every time you buy something new, throw out or give away two things, this will ensure the quantity of items you own decreases over time rather than the gradual creep of belongings.

每次买了什么新东西的时候，就丢掉或者放弃两件旧东西，这能够保证你所拥有的物品的数量会随着时间的流逝不断减少，而不是越来越多。

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Initiates dress in ragged coats adorned with red bean necklaces and a large quantity of miscellaneous items.

UNESCO: Intangible Cultural Heritage

Sneakpeeq offers limited quantity of each product, typically 200 or 300 items.

FORBES: Connect

In the meantime the man ordered a third skip and when it was returned it included a large quantity of Royal Mail bags, a garden incinerator and items of semi-burnt mail.

BBC: NEWS | UK | Wales | South West Wales | 40,000 post items found in skips