帐户：为提供定期的服务，交易，和其他金融活动而建立的正式银行业务， 经纪业或商业关系。

A formal banking, brokerage, or business relationship established to provide for regular services, dealings, and other financial transactions.

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从那以后，各种各样的气垫船出现了，并开始了定期航行服务。

Since that time, various types of hovercraft have appeared and taken up regular sailing service.

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各个政府部门的服务都是不定期的。

Services were irregular across authorities.

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