Another possibility is to return an error to the user (for example, if the user is trying to buy an item that's no longer available).

另一种可能性是向用户返回一个错误(例如，如果用户正在购买一个不再销售的商品)。

youdao

No, Milen, I beg you once again to invent another possibility for my writing to you.

不，麦伦，我再次乞求你，请允许给你写信。

youdao

Server move - we can offer a one time move to another server at no charge that currently isn't blocked however there is always a possibility of the server becoming blocked again.

服务器转移-我们提供一次免费的服务器转移，将您的网站和资源转移到另一台当前没有被封掉的服务器上，但是这台服务器仍然有将来被封的可能。

youdao

Another possibility is to announce that the currency will no longer be fixed at a specific rate.

ECONOMIST: The great escape

Another possibility is the creation of a new class of immigrants who have legal residency but little or no chance of becoming American citizens.

WSJ: Citizenship for Immigrants Divides Republicans