Before long these open fields will be filled with new homes.

不久以后，这些开阔的原野上就会布满了新盖的房屋。

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After you open your data source through services, the obscure and unused fields can be exposed and used without much clarity on definition and usage of these fields.

在通过服务打开数据源之后，不明确或未使用的字段就会暴露出来，并在不太清楚这些字段的定义和用法的情况下加以使用。

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These lures are surrounded by nets and placed in open fields next to a protected forest in southern Brazil.

这些诱饵的四周张网围布，放置在南巴西的一个受保护森林旁的开阔地上。

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These are taken to fields or open land and built into haystack shapes.

BBC: Bales of household waste