我的意思是说某一投入必然产生某一产出。
What I mean by that is certain inputs produce certain outputs.
从这个问题必然产生另一个问题:我要怎样转变?
From this the question inevitably arises: how am I to change?
但那真的意味着歌剧院在推动经济增长中就必然产生了作用?
But does that necessarily mean that it's the present impact of the opera houses that's driving growth?
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