combinatorial investment的用法和樣例：
例句
- The efficient boundary of the portfolio selection is the key to determine the optimal investment structure.
證券組合投資有效邊界是確定最優投資結構的關鍵。 - But the sheer depth of funds means equity portfolio investment will account for some of the cash, possibly farmed out to asset managers.
但這些資金的金額之巨大，意味著一部分現金將投入股票組合投資，或許委託給資產管理公司。
