我们并未删除在保存请求之前完成的实际可用性校验，因此在用户保存请求之前，将会得到此房间是否确实可用的消息。
We did not remove the actual availability verification done before saving a request, so users will be told if the room is actually available (or not) before their request is saved.
大多数情况下，当评估者在考虑多种可用性问题的严重性时，他们并不允许实际接触系统。
Often, the evaluators will not have access to the actual system while they are considering the severity of the various usability problems.
在实际开发之前，先执行一个适当的可用性评价至关重要。
It is very important to conduct a proper usability review before the actual development begins.
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