4.taught by actual experience or practice, not by studying books 有实际经验的

practice [5prAktIs] n. 1.actual use or performance as compared with the idea, intention, rules, etc., on which the action is based 实行；实践

3.　　 sensible; clever at doing things and dealing with difficulties; concerned with facts rather than feeling or fancies老练的； 变通的；实际的

2.effective or convenient in actual use; suited to actual conditions 实用的

5.having much control and influence有势力的；强大的

practical [5prAktIk[l] adj.cerned with action, practice, or actual conditions and results, rather than with ideas实际的

4.having a strong effect有效的； 有力的

2.of great ability; easily producing ideas极大的　　　　　　　 3.strong or great in degree 强的

5.strength and effectiveness of armed force 军力

powerful [5pau[fUl] adj. 1.very strong; full of force强力的

4.force producing electricity 电力

3.force; strength　 力; 力量

7.to supply someone with a drink from a vessel 倒; 注; 灌

powder [5paud[] n. a kind of substance in the form of very fine dry grains 粉; 粉末

power [5pau[] n. 1.right to govern, to give orders, or to be obeyed权力

trol over others; influence势力;影响力