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巌 いわ巌 いわとしなければならない
iwaiwato shinakereba naranai

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i-Adjective
, 
Pre-noun Modifier

Expresses obligation ("must do") of 巌巌とした

1. Must do.; Must absolutely do.

Obligation

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巌巌としなければならない

巌巌としなければならない【いわいわとしなければならない】 Activity

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