慢速英语:Fish Production Needs Double to Meet Growing Global Demand

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短语讲解：

1. The group says fish production needs to more than double by the middle of the century to meet that demand.

more than 不只是; 很; 超过; 在…次以上
例句：America and britain have more than 12.
美国和英国甚至多余多于12个。

2. "In fact, we can't really produce enough fish for the demand," Elliott said.

in fact 实际上，其实; 实则
例句：A lot more, in fact.
事实上，大部分都失败了。

3. You put a fish in at this big and it's going to be 18 months to two years before they are two to three pounds and so you have all that big outlay and you have no return for a long long time.

be going to 要，会，将要; 就要
例句：They tend to be going to school.
他们都将去上学。

4. So in order to farm these large carnivores you have to actually feed them smaller fish and the concern is that in order to keep a tuna farm or a salmon farm going you'll end up having to catch all the little fish in the ocean," said Weaver.

in order to 为了…
例句：They buy patents in order to sue infringers.
他们购买专利的目的就是为了起诉专利侵权者。
end up <非正>（以…）结束; 最终成
例句：I don't know how this will end up.
我不知道这件事将以何种方式结束。

5. But the World Resources Institute says government policies, technology and private efforts have led to improvements in fish farms.

lead to 把…带到; 领到; 导致
例句：That can lead to serious consequences.
这会导致严重的后果。