The key obstacle is pregnant women's lack of access to quality care before, during and after childbirth.

存在的主要障碍是，孕妇在分娩前、分娩中及分娩后不能获得高质量的保健服务。

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But a key obstacle to reduce the amount of gas flared is the lack of infrastructure and available markets for the associated gas.

然而，减少天然气燃除的一个主要障碍是缺乏利用伴生气所需要的基础设施和现有市场。

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The key obstacle to the agriculture laborers' melting into society is from the system, and the essential one is from the economy.

本文认为，影响农民工社会融入的关键是制度障碍和经济障碍。

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Last week, Zimbabwe's rival political leaders reached a deal over a new constitution, removing a key obstacle to holding elections.

BBC: South Africa court 'halts Zimbabwe helicopter donation'

The announcement was criticized by the Palestinians, with the settlement issue a key obstacle to any hopes of reviving the peace process.

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The issue of settlements and their continued growth is a key obstacle in the path of reviving the moribund peace process between Israelis and Palestinians.

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