developing index的用法和樣例：
例句
- The speed index is the development index of the bearing capacity.
速度指標為承載力發展指數。 - Cuba is outranked today in the UN human-development index by democracies such as Argentina, Chile, Uruguay and Costa Rica, while Mexico is not far behind.
現在，古巴在聯合國人類發展指數排名上已經位列一些民主國家如阿根廷，烏拉圭，和哥斯大黎加之後，也僅僅比墨西哥稍靠前。
