let's say it's harvested once per year.

假设它是每年一熟
People depend on it for their lives, actually,

人们以它为生
because they need the food for the whole year.

因为他们全年都需要这种食物
That means there's a storage business;

这就意味着有贮存的商机
rice has to be stored;

大米需要贮存
you have to keep it away from moisture and rot

必须避湿以防腐烂
and away from rats and vermin.

也保其免受老鼠和害虫的侵害
That's a business and it's a very important business for any country.

这是笔生意对任何一个国家都很重要
If it weren't rice, it would be some other grain, which is stored.

即使贮存的不是大米也是其他谷物
When people buy and sell grain they know it's--

当人们买卖谷物时
they're thinking out at least a year

他们总是考虑一年用量
because that's how long the cycle is for one harvest--one cycle.

因为收获周期就是一年一个周期