让我们来分解一下：<start_function_call — 函数调用开始，call: — 前缀，change_background_color — 函数名，{color:<escapered<escape} — 带转义标记的参数，<end_function_call — 函数调用结束。
American citizen among those killed in Cuba boat shooting, US official says，这一点在WPS下载最新地址中也有详细论述
。同城约会对此有专业解读
今天的中国海纳百川，国家发展和人民幸福同心同向。把亿万人民的智慧和力量汇聚起来，我们朝前走步履坚实、步伐铿锵。
"Upvotes reward what a community likes, not what is true, so you can get information cascades, groupthink, and strong echo chambers in certain subreddits."，更多细节参见服务器推荐
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