What matters is that the object remains valid for the time you need it.
重要的是这个对象仍然有效，你需要它的时候。
The valid time for the scale was in accordance with the time of diagnosis.
量表评定时间相同于中医辨证诊断时间。
Some messages contain information that is valid only for a particular period of time.
有些讯息包含的资讯只在特定期间内有效。
Permalinks are intended to be permanent (valid for a long time).
Permalinks打算是永久的(长时间有效)。
Permalinks are intended to be permanent (valid for a long time).
Permalinks打算是永久的(长时间有效)。
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