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1.North Korea is often seen as a poor country, cut off from the world and technologically out of date.
out of date 过时的；过期的；废弃的
The regulations were out of date and confusing.
那些规定已经过时，而且令人费解。
A passport that is out of date is invalid.
护照过期是无效的。
n. 间谍，侦探，侦察
vt. 侦探，看到，找
