gumption

1. N-UNCOUNT If someone has the gumption to do something, they are brave enough to do it. 魄力[oft 'the' N to-inf]

He suspected that deep down, she admired him for having the gumption to disagree with her. 他認爲，她內心深処其實欽珮他有魄力反對自己的意見。

2. N-UNCOUNT If someone has gumption, they are able to think what it would be sensible to do in a particular situation, and they do it. 頭腦[非正式]

Surely anyone with marketing gumption should be able to sell good books at any time of year. 任何有營銷頭腦的人無疑都應該能在一年中任何時候賣掉好書。