Stress can be cumulative, which means eventually people can find it impossible to switch off and relax.
压力可以被累积，这意味着最终人们发现他们不可能扭转这种生活去放松一下了。
2
Such high levels suggest the brains of autistic children are exposed to a lot of oxidative stress, something that would probably cause cumulative damage.
这样高的含量表明，这些患病孩子的脑组织已经暴露在了高氧化压力下，有可能会造成累积的损伤。
3
The adverse scenario for card losses envisaged in American banks’ stress tests, a cumulative two-year loss rate of 22.5%, looks increasingly like the base case to others.