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積 つみ重 かさねなければならない
tsumikasanenakereba naranai

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Ichidan Verb
, 
i-Adjective

Expresses obligation ("must do") of 積み重ねる

1. Must accumulate.; Must stack up.; Must build up.

Obligation

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積み重ねなければならない

積み重ねなければならない【つみかさねなければならない】 Activity

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