Care should be taken when using the idea of an endurance limit as a "safestress" below which fatigue will not occur.
用疲劳极限作为低于它将不出现疲劳的安全应力时，必须要注意。安全应力时，必须要注意。
2
The latter means that the dollar is seen as a “safe haven” currency at times of stress even when, as in 2008, the stress was the result of events within America itself.
No community is perfectly safe from these threats, and through RHoK we can all make a contribution to preventing, helping and alleviating stress and suffering.