in practice
1． practising；in fact实践中；实际上
They have rich experience in practice．他们有丰富的实践经验。
Your idea sounds good but will it work in practice？你的主意很好，但它能实现吗？
2．in proper condition to do sth．well through practice在不断练习中
The iceskater keeps in practice by skating every day．这位溜冰者每天练习溜冰。
A pianist gets his fingers in practice by playing scales．钢琴家练习音节，磨练手指的灵活。