他说："我们认为这种趋势不会持续太长时间，因为将会出现一些限制因素，像水分的可利用性及土壤养分。"
“We don’t think this can persist for too long because other limitingfactors will come into play, like water availability and soil nutrients, ” hesaid.
迎接这个挑战将意味着，利用技术来开发到达读者并使他们投入其中更长时间的新方法，以及兼有免费和付费的访问方式来提高收入的新方法。
Meeting that challenge will mean using technology to develop new ways to reach readers and keep them engaged for longer, as well as new ways to raise revenue combining free and paid access.
当哥伦比亚代表说一致同意的原则不允许一个国家利用否决权，代表们又一次长时间热烈的鼓起掌来。
When the Colombian delegate said that the principle of consensus does not allow one country to impose a veto, the delegates erupted again into prolonged applause.
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