一役 (ひとやく いちやく) — role (which someone or something plays in a given situation); part; contribution (to a given situation)
一役
ひ と や く
Role (which someone or something plays in a given situation); part; contribution (to a given situation)
万次郎
はこの
二国
をお
互
いに
親
しくするために
一役果
たしました
。
Manjiro played a part in making the two countries friends with each other.
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