Show and hide markup / 显示和隐藏批注标记 Protect presentations / 保护演示文稿 Add digital signatures to a presentation / 为演示文稿添加数字签名 ..
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以上为机器翻译结果，长、整句建议使用 人工翻译 。
Though there are many challenges ahead, the presentations and discussions indicated that it just might be possible to produce gas, protect biodiversity and improve the livelihoods of the local people in northern Mozambique.
FORBES: Producing Gas and Protecting Biodiversity in Mozambique
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