1.
Legal effectiveness or validity.
效力法律上的效力或者有效
2.
Article 20 Retroactivity
第20条 追溯效力
3.
speak with (without) effect
说话有（没有）效力
4.
pathetically lacking in force or effectiveness.
情绪上缺少力量或效力。
5.
having no cogency or legal force.
没有力量或法律效力。
6.
To enhance or increase the effect of(a drug.
使更有效力增强或强化（药物的）效力
7.
Thus, it can be categorized into inner and outer validity.
因之，其可分为内部效力和外部效力。
8.
Equal in force, power, effectiveness, or significance.
相等的力量、能力、效力、或重要性等相等
9.
Another way of analysis on the effect and effect types of Real Right--also on correlative quantity of such effect types;
物权效力及其类型的另路分析——兼谈与效力类型相连的物权效力量
10.
causally efficacious powers.
构成原因的有效力量。
11.
The patriot rendered services to his country all his life.
爱国者毕生为国家效力。
12.
and he spends time playing badminton for his school team.
还为校羽毛球队效力。
13.
elected to serve ad interim.
被推选去暂时为……效力。
14.
The legislation was made retrospective.
该项法规具有追溯效力.
15.
How effective is this drug?
这药的效力有多强？
16.
18. Effect of Court Proceedings
18.审判程序的效力
17.
tractive effort
牵引(效)力, 牵引作用, 挽力
18.
Make your efforts tell.
要使你的努力产生效果。