在英语中，实践通常被翻译为 "practice" 或 "practical apppcation". 它来源于拉丁语 "practicus"，意思是 "实行的" 或 "实用的". 例如:

I need more practice before I can perform the piece perfectly. (我需要更多练习才能完美地演奏这首曲子。)
The theory we learned in class is finally being put into practical apppcation in the lab. (我们在课堂上学习的理论终于在实验室得到了实践应用。)
It's one thing to study a subject in theory, but it's another thing entirely to put that knowledge into practice. (学习一门学科的理论是一回事，但将这些知识付诸实践又是另一回事。)