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Maruko is complaining that mum is buying seaweed as a new year's present. Mum
replies:

> 「のりは食べる機会が多くて **すぐに減る** からもらったらありがたいもんなのよ。」  
>  There are plenty of opportunities to eat seaweed, and because they
> **immediately decrease** , when one receives it they are grateful.

Why do the opportunities to eat seaweed decrease? Is there some cultural
knowledge I'm missing or is my translation wrong?
CC BY-SA 3.0
2016-04-30T19:29:53.357
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2016-04-30T22:07:56.847
2016-04-30T19:46:20.630
7944
question
て-form culture reading-comprehension
Confusing use of 減る
What decreases is the stock on hand. In other words, Maruko's mother is saying
that, since people eat nori on so many occasions, **one's supply** runs out
very quickly, and so one is happy to receive it. Think of a big pool of
available nori that gets drained as it gets used.
CC BY-SA 3.0
2016-04-30T20:24:42.717
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2016-04-30T22:07:56.847
2016-04-30T22:07:56.847
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answer