effectiveness

US /əˈfek.tɪv.nəs/
UK /əˈfek.tɪv.nəs/
"effectiveness" picture
1.

有效性, 效力

the degree to which something is successful in producing a desired result; success

:
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