我们的身体比以前差，这就是因为我们现在的生存环境和人类以前的生存环境有很大的不同。进化是人类为了适应野外的恶劣生存环境而产生的。
Our own bodies are worse off than most simply because of the many differences between the wilderness in which we evolved and the modern world in which we live.
尤为严重的是碱法制浆产生的麦草碱木素由于水溶性和表面活性差而难以在工业上得到广泛应用，从而造成对环境的严重污染。
It is difficult for alkali lignin of wheat straw produced by alkaline pulping to be widely used in industry because of its poor solubility and surface activities.
最重要的是，空气-空调环境提供了透气性差，有时甚至可能引起的气味，这让你感到头晕，一种奇怪的病。
Most important, the air - conditioned environment provides poor ventilation, and sometimes may even give rise to a strange kind of smell, which makes you feel dizzy and sick.
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