My study plan has not yet been finished. However, it's under preparation.

我的学习计划还没有准备好，不过正在准备就是了。

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The plan is under study.

那个计划正在研究中。

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The first study adopts a simulation approach to obtain the optimal design of freight consolidation and truck dispatch plan under specific market conditions.

第一部分的研究采用模拟的方法，得到了货物集运的最优设计计划以及在特定的市场条件下的车辆发货安排。

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Under the plan, high-fliers in their final year of undergraduate study would be recruited by Frontline.

BBC: 'Fast-track high-fliers' into front-line social work