{"groundTruth": ["成群结队"], "candidates": [["心腹重患", "乌七八糟", "日夜兼程", "浩浩荡荡", "大摇大摆", "成群结队", "遮天蔽日"]], "content": "据悉，在荷兰一些大城市，灰色苍鹭经常#idiom#的飞来飞去，并在市内“定居”。有时候，苍鹭也会吃人类丢弃的食物或者光顾动物园去找食物。(千龙网石磊)相关新闻：摄影师拍到母鸭保护幼仔与苍鹭搏斗场面(图)", "realCount": 1}