handiness of use 便利性
manual handiness 手巧
unexpected handiness 出人意料的便利
A: The handiness of this gadget is what makes it so popular.
A：这个小工具的便利性正是它如此受欢迎的原因。
B: I agree, it is extremely useful in the kitchen.
B：我同意，它在厨房里非常实用。
1) 手巧，灵巧
2) 便利，方便
3) 实用性
1. 手巧，灵巧
2. 便利，方便
noun
1. The quality of being skillful with one's hands or being useful and convenient.
Synonym: usefulness, dexterity, convenience