effectual
adj.奏效的，收效的；行之有效
网络解释.有效的；奏效的
adj.1.有力的释义下的同义词
legal lawful cogent forceful authoritative binding valid convincing
2.有效的释义下的同义词
acceptable sufficient
3.灵验的释义下的同义词
efficient powerful effective efficacious operative
vain
双语例句
1. 1 . They are almost as expeditious and effectual as Aladdin's lamp.
他们几乎像如意神灯那么迅速有效.
来自《简明英汉词典》