effectiveness
英 [ɪ'fektɪvnɪs]
美[ə'fɛktɪvnɪs]
- n. 效力
英英释意
- 1. power to be effective; the quality of being able to bring about an effect
- 2. capacity to produce strong physiological or chemical effects;
- "the toxin's potency"
- "the strength of the drinks"