infructuous
美
英 
英汉解释
例句
I think, no matter be pushed to the person that does not need information with what means, sending commerce message is infructuous .
我认为,无论以什么方式向不需要信息的人推送商业信息都是徒劳。
If rely on and so on of cereal, legume, potato to reduce weight, that will be infructuous .
假如靠谷物、豆类、土豆之类减肥的话,那将是徒劳的。