The scale of the settlements means that what many scientists have considered virgin tropical forests are in fact heavily influenced by historic human activity .
这些聚落的规模意味着,许多科学家曾经以为的原始热带森林,实际受到了历史上人类活动的严重影响。
But the most effective policy would be to incorporate the costs of the pollution caused by gathering and processing virgin materials into their prices .
不过,把收集与加工原始生产材料所产生的污染成本计算到总成本中,才是最有效的措施。
Whether single , married or virgin , some relaxing holidays are a good idea for everyone .
不管单身、已婚还是处子之身,几次轻松地假期是很有用的。
Some still believe that sex with a virgin is a cure for aids .
还有一些南非人仍然认为和处女发生性关系能治愈艾滋病。
In humans , a virgin birth would mean that a woman 's eggs develop successfully without sperm .
对人类而言,处子生育将意味着女人的卵子在不和精子结合的情况下成功发育。
Hers is the best known story of a virgin birth in the world , but it is by no means the only one .