当他意识到自己的错误时，已经太晚了。

His ___realisation of the mistake came too late.

公司计划通过变卖部分资产来筹集资金。

The company plans to raise funds through the ___realization of some assets.

经过多年努力，她终于实现了成为医生的梦想。

After years of effort, she finally achieved the ___realization of her dream to become a doctor.