effectual

英[i'fektʃuəl]美[i'fektʃuəl]

a.
1.有效果的，奏效的
2.有法律效力的，有力的

同：	[a.] effective, efficacious, legal, sound
反：	[a.] ineffective, ineffectual, uneffective

To be prepared for war is one of the most effectual means of preserving peace
维护和平最有效的办法之一是备战收藏
About a hundred yards away on a small sand spit there was the occasional sharp in effectual pop of a carbine
从百来码以外一个伸出在海水中的小小的沙滩角上，时而传来卡宾枪朝天砰的一响。收藏
Quinine is an effectual preventive for malaria.
奎宁是有效的疟疾预防药。收藏

producing or capable of producing an intended result or having a striking effect
- an air-cooled motor was more effective than a witch's broomstick for rapid long-distance transportation
- effective teaching methods
- effective steps toward peace
- made an effective entrance
- his complain
[同] effective, effectual, efficacious
[反] ineffective, ineffectual, uneffective
having legal efficacy or force
- a sound title to the property
[同] effectual, legal, sound

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