practicality

Before buying the fancy sports car, he had to consider the practicality of using it for a daily commute.

(Chinese) 在购买那辆华丽的跑车之前，他必须考虑将其用于日常通勤的实用性。

The engineers questioned the practicality of building a bridge over such a wide and deep canyon.

(Chinese) 工程师们质疑在如此宽且深的峡谷上架桥的实用性。