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completeness in both (e.g. loyalty and filial piety, study and sports)
advantageous to both sides
忠孝両全の精神を貫いた武士が称えられた。
The samurai who upheld both loyalty and filial piety was praised.
仕事と家庭の両全を目指して努力している。
I am striving to fulfill both work and family duties.
名誉と実利の両全は容易ではない。
Achieving both honor and profit is no easy task.