基本解釋abbr.投資收益率；利潤率(=return on investment)同根派生 ROI相關詞英漢例句Roy jumped the gun and started building an extension to his house before be had planning permission, and now he's furious because the local council have made him pull it all down.羅伊在沒有得到槼劃許可前過於匆忙地擴大了住宅建築的範圍，現(xiàn)在他大發(fā)雷霆，因爲地方委員會要他拆掉。ROI更多例句