Tā / yīn / wèi / shū / hū / dà / yì / bǎ / dào / shǒu / de / xiàng / mù / gǒng / shǒu / ràng / rén.

他因为疏忽大意，把到手的项目拱手让人。

Because of his carelessness, he handed the project he had secured to someone else without a fight.