1. 请求;要求
    If you request something, you ask for it politely or formally.

    e.g. Mr Dennis said he had requested access to a telephone...
           丹尼斯先生说他已经请求使用电话。
    e.g. She had requested that the door to her room be left open.
           她要求不要关闭通向她房间的门。

2. 请求…做;要求…做
    If you request someone to do something, you politely or formally ask them to do it.

request的意思

    e.g. They requested him to leave...
           他们要求他离开。
    e.g. Students are requested to park at the rear of the Department.
           学生必须把车停在该系后面。

3. 请求;要求
    If you make a request, you politely or formally ask someone to do something.

request的解释

    e.g. France had agreed to his request for political asylum...
           法国已经同意了他寻求政治庇护的请求。
    e.g. Vietnam made an official request that the meeting be postponed.
           越南已经正式请求将会议推迟。

4. 点播的乐曲
    A request is a song or piece of music which someone has asked a performer or disc jockey to play.

    e.g. If you have any requests, I'd be happy to play them for you.
           您点播任何歌曲，我都会很乐意为您演奏。

5. 应邀;应…的请求;按照…的要求
    If you do something at someone's request, you do it because they have asked you to.

request的近义词

    e.g. The evacuation is being organised at the request of the United Nations Secretary General.
           根据联合国秘书长的要求，正在组织撤退。

6. 一经要求;根据请求
    If something is given or done on request, it is given or done whenever you ask for it.

    e.g. Leaflets giving details are available on request...
           备有介绍详情的传单以供索取。
    e.g. Chambermaids will bring an iron or hair dryer on request.
           只要提出要求，清理房间的女服务员就会送来熨斗或电吹风。