whit

他对这些琐事毫不关心。

He doesn't care a ___whit about these trivial matters.

当他宣布在这家公司工作二十年后辞职时，他的声音里听不出一丝遗憾。

There was not a ___whit of regret in his voice when he announced he was resigning after twenty years at the firm.

尽管厨房台面上堆满了装修账单，我妻子对我们的预算没有表现出一丝担忧。

Despite the pile of renovation invoices on the kitchen counter, my wife showed not a ___whit of concern about our budget.