但一待导致延迟之原因终止，即须尽合理努力发出通知。
When the cause of delay ceases to operate, the notice must be given with reasonable diligence.
这课程只有及格与不及格；任何作过合理努力的人均会合格。
The class is Pass-Fail only, and anyone making a reasonable effort will pass.
不切实可行，是指企业在作出所有合理努力后仍然无法采用某项规定。
The term "infeasibility" means that an enterprise is still unable to adopt a certain provision after it makes all reasonable efforts.
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