核聚變和核裂變些者需要能量,些者釋放能量?

I would say fusion (聚變) and fission (裂變) can be energy release or energy absorb, depends on what elements used in the reaction.

For element heavier than iron, fission will release energy. Fusion will take energy.
For element lighter than iron, fusion will release energy. Fission will take energy.

Please remind that the activation energy for fusion is normal higher than that of fission, even usually the energy release per mass used is fusion is higher than that of fission, since we needed to overcome the repulsive force of the nucleus of atom for fusion.

Both nuclear fission and nuclear fusion release energy.