He has no conception of how difficult life is if you're unemployed.

他不懂得失业后生活会是怎样的艰难。

《牛津词典》

He has absolutely no conception of how to run a business.

他对于经营生意完全一点概念都没有。

youdao

You have no conception at all of how difficult my life was in those days.

你根本想像不出那些日子我的生活有多艰难。

youdao

The Fed seems to have no conception of what creates a high standard of living--people receiving more pay for more sophisticated, productive work.

FORBES: Fact and Comment

But the Republicans have a strange conception of the American Dream that makes no room for a social safety net to even the playing field and support the most vulnerable among us.

FORBES: Ann Romney Loves Women, but Mitt Romney Loves Tax Cuts More

Child-rearing and conception are highly personal and emotional decisions, and ones that should in no way be driven by tax breaks.

FORBES: To Reduce Taxes, We Must Abolish Our Tax Breaks