我们得小心穿越河流。
一路上水流湍急、险滩众多。[{'character': '一', 'pinyin': 'i2', 'highest pitch': 9.55, 'lowest pitch': 8.59, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '路', 'pinyin': 'lu4', 'highest pitch': 11.24, 'lowest pitch': 9.46, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '上', 'pinyin': 'shang4', 'highest pitch': 9.46, 'lowest pitch': 8.09, 'duration': 0.31, 'prosody hierarchy': '#2'}, {'character': '水', 'pinyin': 'shuei3', 'highest pitch': 8.62, 'lowest pitch': 5.44, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '流', 'pinyin': 'liou2', 'highest pitch': 6.7, 'lowest pitch': 4.88, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '湍', 'pinyin': 'tuan1', 'highest pitch': 10.68, 'lowest pitch': 6.7, 'duration': 0.28, 'prosody hierarchy': 'null'}, {'character': '急', 'pinyin': 'ji2', 'highest pitch': 10.37, 'lowest pitch': 6.3, 'duration': 0.32, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.08}, {'character': '险', 'pinyin': 'xian3', 'highest pitch': 13.68, 'lowest pitch': 3.34, 'duration': 0.3, 'prosody hierarchy': 'null'}, {'character': '滩', 'pinyin': 'tan1', 'highest pitch': 9.33, 'lowest pitch': 8.52, 'duration': 0.25, 'prosody hierarchy': '#1'}, {'character': '众', 'pinyin': 'zhong4', 'highest pitch': 10.2, 'lowest pitch': 8.04, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '多', 'pinyin': 'duo1', 'highest pitch': 9.54, 'lowest pitch': 9.25, 'duration': 0.32, 'prosody hierarchy': '#4'}]