1·Something simple and practical had, over time, become very complex and unpractical.
曾经非常简单和实用的内容经过一段时间后变得非常复杂和不切实际。
2·On pursuing the unpractical things, you will gain nothing in vain.
一味地追求不切实际的东西，到头来只能是竹篮打水一场空。
3·His desire to be No . 1 is unpractical .
他想要成为第一的渴望是不切实际的。
4·The products give us peace of mind and solved the problem of decontaminating products which are constantly handled but are unpractical to sterilise on a daily basis.
产品，让我们安心，并解决了这个问题的去污产品正不断处理，但都是不切实际用以消毒一天一换。