教育很重要，但实践经验总是一个优势。

Education is important but ___practical experience is always an advantage.

这项服务为年轻人提供找工作的实用建议。

The service offers young people ___practical advice on finding a job.

没有实际应用的理论知识有什么用？

What's the use of theoretical knowledge that has no ___practical application?