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Sentence

両りょう社しゃは長なが年ねんにわたって協きょう調ちょう関かん係けいを築きずいてきた。

Span Details

両りょう社しゃ

長なが年ねん

many years; a long time

noun, adverb

にわたって

throughout; over a period of; spanning

協きょう調ちょう関かん係けい

cooperative relationship; partnership

build up; establish; lay (a foundation)

-> 築くgodan verb

action or change coming toward the speaker or up to the present

-> てくるgrammar

past tense or completed action