质量是一个永无止境的过程，需要持续不断的进行。因此在他们的质量改善步骤

质量是一个永无止境的过程，需要持续不断的进行。因此在他们的质量改善步骤中，最后一步必定是重复整个过程，使质量能够不断得到提升。

結果 (英文) 1:

Quality is a never-ending process that requires continued. In their steps to improve the quality, therefore, the last step will be to repeat the whole process, so that quality can be continuously improved.

結果 (英文) 2:

Quality is a never-ending process that requires continuous conduct. Therefore, in their quality improvement step, the final step in the process must be repeated, so that the quality can continue to be promoted.

結果 (英文) 3:

Quality is a never-ending process, the need to continue to carry out. Therefore, in their quality improvement steps, the final step is to repeat the whole process, so that the quality can be continuously improved.