so, you would be taking delivery of a standard rice.

所以你收到的大米是标准用米
Moreover, at the exchange,

除此之外在交易所
they had experts on rice who could tell whether it was that contract.

还聘有专家来判别是否是标准用米
It's not the best rice; it's the most common rice.

标准大米不是最好的而是最常见的
I visited the coffee, sugar and cocoa exchange in New York once

我曾去过一次纽约咖啡及砂糖交易所
and jokingly I said, can I have a cup of coffee?

我开玩笑说能不能来杯咖啡
This is the coffee, sugar and cocoa exchange;

这里是纽约咖啡及砂糖交易所
surely I can get a cup of coffee here.

我当然能来一杯咖啡
Then the guy said, who was showing me around,

然后导游说
he said, well we could give you a cup of coffee

他说我们可以给您来一杯咖啡
but it's not what we trade here.

但用的不是这里交易的品种
He says, you wouldn't like the coffee we trade here;

他说你不会喜欢我们的交易品种