practical effectiveness的用法和樣例：
例句
- How to enhance the actual effect of moral education in universities under the new situation is a practical problem facing moral education in universities.
摘要如何增強新形勢下高校德育工作的實效性，是高校德育工作面臨的一個現實問題。 - But, he added, there are practical concerns with large pragmatic trials because companies have to look at a wide range of possible effects when they test a drug.
但是，他承認對於大型實效性研究存在實際的考慮，因為進行實效性研究，製藥公司必須在更大範圍內評價藥物的可能效果。
