- talk in vain；talk or write at length
... problem is "waste". This word is a multifunction word, it...an uncountable singular noun "waste" in noun1. As..., this is a multifunction word, so you shall spend some time to study...
...：while not a recycling process in the full meaning of the word這句話可能不是翻得很正確，還有請功力高的大大們加以指正。而且最後一段...