What are the practical applications of this work?这项工作的实际用途是什么?The major thrust of their research will be to find practical applications.他们研究的主要目的是寻求实际用途。It's of no practical use to me.这对我没什么实际用途。Unfortunately Carter's research has no practical use.不幸的是,卡特的研究毫无实际用途。