practisev.练习；实践；实行；开业n.练习；实践；实行；业务；惯例=practice.practise singing练嗓子practise economy厉行节约practise actively主动实践practise at piano练习弹钢琴practise patience体现忍耐practise on piano练习弹钢琴practise medicine开业当医生Practise Teaching实践教学practise industry经营工业practise breathing调节呼吸

1. He gave a lecture on the use of solar energy.
   他就太阳能的利用作了一场讲演。
2. James unleashed his power on Susan in revenge.
   杰姆斯利用权力报复苏珊。