effective表有效的;起作用的意思，那么你知道effective的同义词有哪些吗？
1. The pill is the most efficient method of birth control.
服用避孕药是最有效的避孕方法。
2. These people are very efficient, very organized and excellent time managers.
这些人做事效率很高，井井有条，并且十分善于管理时间。
3. The process of replication is very quick and efficient.
复制的过程快捷、高效。
4. Service was outstandingly friendly and efficient, falling down on only one detail.
服务态度极佳，效率也蛮高，仅在一个小地方不尽人意。
5. An efficient bulb may lighten the load of power stations.
一个节能灯泡也许就能减轻发电站的负荷。
6. With today's more efficient contraception women can plan their families and careers.
如今有了更加有效的避孕方法，女性便可以规划她们的家庭和事业。
7. The Indian cavalry under Haig became a functionally efficient unit.
黑格领导下的印度骑兵成为了一支高效执行任务的队伍。
8. An efficient transport system is critical to the long-term future of London.
高效的公共交通系统对伦敦长远的未来至关重要。
9. She was efficient and reliable.
她办事很有效率，也很可靠。
10. The metro is efficient and spotlessly clean.
地铁非常快捷，而且一尘不染。
11. Regulators may gum up an efficient system.
管理者可能会使一个行之有效的制度陷于瘫痪。
12. Cars are becoming so aerodynamically efficient.
汽车越来越向流线型节能方向发展。
13. the efficient use of energy
能源的有效利用
14. a quieter, more efficient engine
一台声音更小、效率更高的发动机
15. The service at the hotel is efficient and unobtrusive.
那旅馆的服务工作有效率而不夸张。
effective, efficient
这两个形容词均有"有效的"之意。
effective ： 侧重产生实际的效果、效力或具有取得预期效果的能力，指人指物都适用。
efficient ： 侧重指积极有效，效率高，效果好，节省精力。指人时，强调其能干、熟练的技巧。
1. Condoms are an effective method of birth control if used with care.
如果使用得当，避孕套是很有效的避孕手段。
2. Light colours provide an effective backdrop for pictures or a mirror.
浅色是挂放图画或镜子很有效果的衬托。
3. Women are sometimes seen to be less effective as managers.
女性有时被认为不善于管理。
4. The initial image projected was of a caring, effective president.
他最初表现出的是一个充满爱心、办事有效的总统形象。
5. The bank must be run in a cost-effective way.
银行的经营必须追求成本效益。
6. Politically speaking, do you think that these moves have been effective?
从政治角度来说，�
8. His kindliness and warmth made him particularly effective with staff welfare.
他的友好和热心使他将员工福利工作做得相当出色。
9. Many remedies effective in joint disease are primarily diuretic.
许多对关节病有效的药品主要含有利尿成分。
10. A united effort is always more effective than an isolated complaint.
联合行动总是比单个人抱怨更有效。
11. Roll on the day someone develops an effective vaccine against malaria.
盼望有一天有人会研制出一种能有效预防疟疾的疫苗。
12. Good customer relations require courtesy, professionalism and effectiveresponse.
良好的客户关系需要做到礼貌、专业，并提供有效的回复。
13. She said this would allow more effective planning.
她说这会为更有效的规划创造可能。
14. Team captains need to have effective man-management skills.
队长需要掌握有效的人员管理技能。
15. Thanks to recent research, effective treatments are available.
多亏近来的研究才有了有效的疗法。