15 the ostrich, the nightjar, the gull, the various species of hawks,
驼鸟、夜鹰、海鸥，凡苍鹰之类，
16 the ostrich, the nightjar, the gull, the various species of hawks,
驼鸟、夜鹰、海鸥和苍鹰之类；
15 the ostrich, the nightjar, the gull, the various species of hawks,
驼鸟、夜鹰、海鸥，凡苍鹰之类，
16 the ostrich, the nightjar, the gull, the various species of hawks,
驼鸟、夜鹰、海鸥和苍鹰之类；
探索常用高频词汇