adjective [原级]介绍婚姻的I joined a dating agency.我加入了一家婚介所。
noun [具体名词]约会Online dating is big business in the United States.网上约会在美国是桩大生意。
verb [vi. 不及物动词]约会，与（某人）谈恋爱；注明日期；确定年代；过时，不流行；使……显老（date 的现在分词）If you're a busy person, looking to meet several potential mates at the same event, speed dating could be for you.如果你是个忙人，想在同一场合与几位可能成为自己伴侣的人见面，那么快速交友也许会适合你。