An item of prominenceon the conference agenda was infant health care. 会议议程上的一项重要议题是婴儿保健. 《简明英汉词典》 To reserve an item of equipment for a single purpose. 为单一使用目的而保留一项设备. 互联网 The information contained in an item of information which is in excess of a given amount. 包含在某个信息项中的信息超出了限定量.