虽然说认为消息引擎数据库从不需要维护可能不够严谨，但是我认为您大可以放心地断定并非所有的表都需要进行检查。

While it's probably not prudent to suggest that the messaging engine database never needs maintenance, I think you can safely conclude that not all the tables need to be examined.

youdao

问题是—这是我继续这篇Web服务讨论的关键点—目前还没有可采纳的可靠的消息传递的解决方案，可以容易地与其它解决方案进行交互操作。

The problem is — and this is a key point as I continue in my discussion of Web services — none of the reliable messaging solutions currently available are readily interoperable with the others.

youdao

有一条好消息要告诉你，我跟老板进行了沟通，他表示如果你们负责运输费用，我们也可以免费提供保险费。

The good news is that I spoke to my boss, and he said that if you take care of the shipping costs, we'll throw in free insurance too.

youdao