- 1. 有用，有益，有效[U]
He has outlived his usefulness. 他已老而無用了。
... Quality)對數位學習的認知有用性(Perceived Usefulness)有正向顯著關係。 There is an obvious positive relationship between information...
...服務對像(顧客或社會大眾)對它們的信賴度。 utility 指value; effectiveness; advantage; usefulness; helpfulness ; the amount of usefulness that Sth has 原指某物所具有的...
...have to. 4 The wisedom of our ancestors is of great usefulness, but only few is aware of that. 5 Much of his agony came...