💡 Detailed Explanation
The noun '貿易' (international trade) is read as 'ぼうえき' (bōeki). Sentence translation: 'I am studying about the trade between Japan and the United States.' '貿' is read with a long vowel 'ぼう' (bō) and '易' (easy/exchange) is read as 'えき' (eki) here.