All generated elements use explicit opening and closing tags (or self-closing tags), and attribute values are included in double quotation marks.
生成的所有元素都使用显式的开始标记和结束标记(或自结束标记),且属性值括在双引号中。
The Earth is growing cooler as it loses the heat trapped in its creation and generated by radioactive elements within it.
因为内核失去在其形成时捕捉的热能,而且是通过内核里的放射性元素产生的热能,所以地球正渐渐冷却下来。
All elements generated from the schema are mandatory by default.
默认情况下,从模式中生成的所有元素都是必填的。
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