Tickets are available on a first come, first served basis.

票先来先买，售完为止。

《牛津词典》

Reservations will be confirmed on a first come first served basis upon receipt of the registration.

我们将在收到您签名的传真后为您保留座位。

youdao

To implement file consistency, we have designed a queue that is used to place the request using first-come-first-served basis.

为保持文件一致性，我们设计了一个队列，用于放置请求，并按照先到先服务的原则。

youdao

No appointments are available for the Saturday open house and service will be provided on a first come, first served basis.

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Often clubs offer a set number of memberships when they open and people sign up to join largely on a first come, first served basis.

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Restaurant reservations must be made at least a few weeks in advance, while seats at the wine bar can be had on a first-come, first served basis.

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