Recently the service, which has been around since 2006 and is normally ad-supported, started offering premium accounts with greater customization and no advertising.

这款2006年面世的软件通常都带有广告，但最近，它开始推出自定义化更高以及不含广告的Premium帐户。

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This algorithm is implemented under the covers in the task editor, and you won't normally see it, but when creating AD hoc tasks or new staff query verbs, you should be aware of it.

此算法在任务编辑器的后台实施，通常不会看到它，但当创建临时任务或新任务查询谓词时，您会注意到它。

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Adenovirus-36 (Ad-36) is a highly contagious virus that normally causes upper respiratory tract infections.

腺病毒—36 (Ad - 36)，通常会导致上呼吸道感染，一种高度传染性的病毒，大约有50多种变异体。

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Membership of most Public Bill Committees and ad hoc committees of this kind is normally decided by an outfit called the Committee of Selection, which is essentially a clearing house for lists drawn up by the various whips offices.

BBC: Tory manoeuvrings