There is no cancel/request dance that has to occur; the changes are immediate with no chance of someone else reserving the room out from under the other users.

这里不需要进行任何复杂的取消/请求操作，更改可立即完成，而正在预订房间的其他任何人都没有机会占用此房间。

youdao

Either the delivery is immediate, or we'll have to cancel the order.

若不能立即送货，我们将取消定货。

youdao

We must insist on immediate delivery, otherwise we shall be compelled to cancel the order in accordance with the contract stipulations.

我方必须坚持立即交货，否则将不得不按照和约规定撤销订单。

youdao

You can send the CBOE an immediate or cancel order (IOC) and that order will not be flashed.

FORBES: Furthering The Options Flash Debate

Waive the debt ceiling, cancel any immediate spending cuts or tax hikes, and put long-term structural reform aside till Washington is ready to provide leadership on long-term structural reform.

WSJ: Jenkins: Lost Decade, Revisited

"The university is pleased that the Welsh government has decided to cancel with immediate effect the statutory consultation process involving the dissolution of Cardiff Metropolitan University which we believe was legally and financially flawed, " she said.

BBC: Cardiff Met reprieve on south east Wales uni merger