1 to do an activity or train regularly so that you become very good at sth 练习: If you want to play a musical instrument well, you must practise every day. 如果你乐器想演奏得好，你必须天天练习。He always wants to practise his English onme. 他老是想跟我练习英语。

2 to do sth or take part in sth regularly or publicly （经常或公开地）做，参与: a practising Catholic/Jew/Muslim 虔诚的天主教徒╱犹太教徒╱穆斯林

3 practise (sth/as sth) to work as a doctor or lawyer （医生或律师）开业，执业: She's practising as a barrister in Leeds. 他在利兹当律师。He was banned from practising medicine. 他被禁止行医。