今天货币汇率又发生了变化吗？
今天一美元回到兑换一点六六一雷亚尔的水平。[{'character': '今', 'pinyin': 'jin1', 'highest pitch': 8.55, 'lowest pitch': 8.13, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '天', 'pinyin': 'tian1', 'highest pitch': 9.42, 'lowest pitch': 8.13, 'duration': 0.34, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.08}, {'character': '一', 'pinyin': 'i1', 'highest pitch': 11.47, 'lowest pitch': 9.61, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '美', 'pinyin': 'mei3', 'highest pitch': 11.33, 'lowest pitch': 6.07, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '元', 'pinyin': 'van2', 'highest pitch': 8.02, 'lowest pitch': 6.06, 'duration': 0.3, 'prosody hierarchy': '#2'}, {'character': '回', 'pinyin': 'huei2', 'highest pitch': 12.59, 'lowest pitch': 6.53, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '到', 'pinyin': 'dao4', 'highest pitch': 8.42, 'lowest pitch': 6.77, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '兑', 'pinyin': 'duei4', 'highest pitch': 8.4, 'lowest pitch': 6.77, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '换', 'pinyin': 'huan4', 'highest pitch': 8.95, 'lowest pitch': 6.12, 'duration': 0.34, 'prosody hierarchy': '#2'}, {'character': '一', 'pinyin': 'i1', 'highest pitch': 11.47, 'lowest pitch': 8.69, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '点', 'pinyin': 'dian3', 'highest pitch': 9.26, 'lowest pitch': 5.7, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '六', 'pinyin': 'liou4', 'highest pitch': 9.47, 'lowest pitch': 6.31, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '六', 'pinyin': 'liou4', 'highest pitch': 9.47, 'lowest pitch': 6.93, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '一', 'pinyin': 'i1', 'highest pitch': 11.47, 'lowest pitch': 8.01, 'duration': 0.22, 'prosody hierarchy': '#2'}, {'character': '雷', 'pinyin': 'lei2', 'highest pitch': 9.3, 'lowest pitch': 6.27, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '亚', 'pinyin': 'ia4', 'highest pitch': 10.46, 'lowest pitch': 9.27, 'duration': 0.12, 'prosody hierarchy': 'null'}, {'character': '尔', 'pinyin': 'er3', 'highest pitch': 10.18, 'lowest pitch': 5.33, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 7.26, 'lowest pitch': 6.18, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '水', 'pinyin': 'shuei3', 'highest pitch': 7.45, 'lowest pitch': 5.72, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '平', 'pinyin': 'ping2', 'highest pitch': 7.43, 'lowest pitch': 5.97, 'duration': 0.35, 'prosody hierarchy': '#4'}]