形容词
1. Your invention is very practical.
你的发明物很实用。
2. He gave sound and practical advice.
他提出了很好的，实际可行的建议。
3. Practical experience is often very important.
实际经验往往是很重要的。
4. practical的反义词
4. She was a simple, practical, hardworking woman.
她简朴，实际，勤奋。