这两句话看看怎么表达比较好？英文翻译，谢谢

1\我们还制作了包装的样板，发现这种包装方式会浪费太多的空间，这就是导致价格很高的原因。
2\这个工厂拥有很充足的生产能力，月产量达到40万套红色杯子，他们承诺每月可以出货给我们8万套。

By making a sample of packing, we found the reason for a high price was that too much space was wasted by this packing method .
The factory has an adequate production capacity to reach a monthly output of 400,000 sets of red cups and it made a commitment to sell us 80,000 sets a month.

a - star algorithm is most promising heuristic search algorithm. this paper has a deep analysis of the a - star algorithm thought, principle, etc. according to the eight digital puzzle design a - star algorithm process, and concrete realization of the a - star algorithm. to obtain more good time and space efficiency, through the improvement evaluation function, make a - star algorithm can more efficiently resolve the eight digital problem.

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