我们不能指望这暖和的天气会持久。
给两岁的孩子讲这些故事似乎并不能使他们形成可以用语言表达的持久性记忆。
Telling such stories to two year olds does not seem to produce long-lasting verbalizable memories.
我们不能指望这样好的天气会持久。
环境条件很重要，但是，即使有，也不能足以说明社会文化的持久性和变化。
Environmental conditions mattered, but they were rarely, if ever, sufficient to account for sociocultural persistence and change.
正如这里所指出的，社会疗法最明显的缺陷是它不能持久地发挥良好的作用。
The most glaring flaw of the social cure as it's presented here is that it doesn't work very well for very long.
你会意识到东西不能带来持久的幸福。
如果不能作出这种判断，那么将认为至少有一部分规范是不具有持久性的。
If it's unclear whether this is the case, then proceed with the assumption that at least some specifications are not durable.
还有其他的解决方案如cookie会话仓库(会话长度有限，不能在会话中存放敏感数据)，memcached(无法持久化+难以实现高可用性方案)。
There are other possible solutions like cookie session store (session size is limited, no sensible data in sessions), memcached (too much RAM when you have many sessions + no persistence).
它们在单个事务中运行，其状态仅保存在内存中，而不能持久性地保存到流程的服务器数据库中。
They run in a single transaction and their state is only hold in memory and not persisted to the process server database.
例如，你不能随便选择你要用的持久化框架——有时候，选用这些组件要遵从公司的政策。
For example you don't always get to choose what persistence framework you want to use - sometimes that's dictated by corporate policy.
但当新的实例正在持久化时，Slice并不能决定哪个数据库分区应与这个新实例相关联。
But when a new instance is being persisted, Slice cannot determine which database partition should be associated with a new instance.
例如，只用pickle不能解决命名和查找pickle文件这样的问题，另外，它也不能支持并发地访问持久性对象。
For example, pickling alone doesn't solve the problem of naming and locating the pickle files, nor does it support concurrent access to persistent objects.
因此，使用当前版本的MetamodelAPI可以知道哪些字段是持久化的，但不能找到它们映射到的数据库列。
Hence, with the current version of the Metamodel API, it's possible to know which fields are persistent, but it's not possible to find out which database columns they are mapped to.
但仅靠体力活动不能带来持久性体重下降或血压、胆固醇的降低。
Physical activity alone will not lead to sustained weight loss or reduce blood pressure or cholesterol.
此外，微小的核心不能自动检测到一个持久的主目录，所以家里总是需要引导选项。
Also, Tiny Core cannot auto-detect a persistent home directory, so the home boot option is always required.
此外，微小的核心不能自动检测到一个持久的主目录，所以家里总是需要引导选项。
Also, Tiny Core cannot auto-detect a persistent home directory, so the home boot option is always required.
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