英汉词典

1. 浪费的;耗费的;挥霍的
    Action that is wasteful uses too much of something valuable such as time, money, or energy.

    e.g. This kind of training is ineffective, and wasteful of scarce resources...
           这种训练没有效率，而且是对稀缺资源的浪费。
    e.g. Try to avoid wasteful duplication of effort.
           尽量避免无用的重复劳动。