effectiveness
US /əˈfek.tɪv.nəs/
UK /ɪˈfek.tɪv.nəs/
名词
有效性, 效力
the degree to which something is successful in producing a desired result; success
示例:
•
The effectiveness of the new policy is still being evaluated.
新政策的有效性仍在评估中。
•
We need to improve the effectiveness of our marketing campaigns.
我们需要提高营销活动的有效性。