In the second case, where the MCA has acted on the COMMIT but could not deliver the response code, there is no transaction to roll back.

在第二种情况下，MCA已对COMMIT采取了行动，但是未能传输响应代码，因此将不存在要回滚的事务。

youdao

These are heavyweight, adapter-driven solutions that take months to years to roll out in any meaningful fashion, and often require a lot of code for mapping protocols and data formats along the way.

它们是重量级的、适配器驱动的解决方案，通常需要数月才能建成具有一定价值的规模，而且协议映射和数据格式往往还需要许多编码。

youdao

Since the online store was already live, we would never roll out new code without first testing it and gathering detail metrics.

由于在线商店已经上线了，我们只有在对新代码进行测试以及搜集数据之后才能发布。

youdao