短語詞組短語investment risk decision -making model 投資風險決策模型Low -risk investment 低風險投資high -risk investment [金融]高風險投資;高風險投資combi -nation investment risk 組合投資風險risk investment decision -making method 風險投資決策方法Trust is a high -risk investment 是一項很大風險的投資 返回 investment risk