efficacious
词形变化：
副词: efficaciously | 名词: efficaciousness |
同义词：
effective | effectual | efficient | practical | energetic | fruitful | successful | useful | worthwhile | valuable |
反义词：
词义辨析：
同义参见:
practical
energetic
efficient
effectual
effective
fruitful
反义:
a.有效的; 灵验的
inefficacious