However, we should know well that compensation system for divorce damage is a complicated issue and is not mature.
但是应该看到，离婚损害赔偿制度是一个复杂的问题，这一制度本身仍不健全。
The rock blasting mechanism is a complicated subject and at present the study of its theory isn't mature.
岩石爆破机理是一个复杂的问题，目前理论研究还不是很成熟。
Yes, it is a complicated job that only a responsible and mature person can perform, but it also provides that person the unconditional feeling of happiness out of tiredness.
是的，那是一个只有有责任的成熟的人才能履行的工作。同时这还可以让在劳累之余感受到毫无条件的幸福。
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