in practice

副词 in practice:

1. in practical applications

1. It's important to keep in practice.
   经常练习很重要。
2. It's a fine scheme on paper, but will it work in practice?
   那计画不错，不过实践上是否可行？
3. It was quite useless in practice.
   实际上，这个一点用也没有。
4. He has been in practice for twenty years.
   他已有20年的实践经验。
5. The idea sounds good but will it work in practice?
   这主意听起来不错，但在实践中行得通吗？