“Single-handedly” in Japanese
Short answer
Single-handedly in Japanese is “一手に” (itteni). Full meaning: single-handedly, alone, single-handed.
Other ways to say “Single-handedly” in Japanese
男手一つで
otokodehitotsude single-handedly (usu. of a male raising children), on one's own, as a single father
女手一つで
onnadehitotsude single-handedly (usu. of a female raising children), on one's own, as a single mother
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