I cannot for the life of me imagine why they want to leave.
我怎么也想象不出他们为什么要走。
Can you imagine what it must be like to lose your job after 20 years?
你能想象得出干了20年之后被辞退会是什么样的滋味吗？
I would imagine the job will take about two days.
我猜想这工作大概需要两天左右的时间吧。
I can't imagine life without the children now.
我现在无法设想没有了孩子们的生活。
I should imagine it will take about three hours.
我想得用差不多三个小时吧。