adjective ダウンロード 🔗共有 河川の Of, pertaining to, or produced by rivers; fluvial Examples : "The fertile soil near the river is fluviatile, perfect for growing crops. " 川の近くの肥沃な土壌は河川性で、作物の栽培に最適です。 geography geology environment nature AIとチャット語彙ゲーム読解練習