一亩三分地
一亩三分地-
土改时每人领得一亩三分地。
During the land reform each person got 1.3 mu of land .
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体系内的每个人都在开垦自己的一亩三分地。
Everybody inside the system is optimising their corner .
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让其他人去操心需求的规划，去购买几乎买回来就过时的系统；你只需要关心自己的一亩三分地。
Let others worry about projecting demand and acquiring systems that may be obsolete almost as soon as they are delivered ; you focus on your widget business .