在撒哈拉以南的非洲，社会越稳定有序，其中产阶级规模越大。
In sub-Saharan Africa the better the governance, the bigger a country’s middle-income bulge.
在指数跟踪方面，规模越大，成本越低，你跟踪的指数越准确。
In index tracking, the bigger you get, the lower your costs, and the more closely you follow the index.
音乐公司规模越大，它将更有机会挑选用户并把握数字市场方向。
The bigger the music firm, the more it can pick winners and steer the digital market.
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