completeness
noun [ U ] uk/kəmˈpliːt.nəs/ us/kəmˈpliːt.nəs/
完整，完备
the quality of being whole or perfect and having nothing missing
For the sake of completeness, I should also mention two other minor developments. 为了不遗漏任何细节，我还想提提另外两个不太重要的新情况。