那位富豪押下重金投资这家科技公司的研发项目。

The billionaire is ___staking a fortune on the tech company's R&D project.

农民正在给新栽的树苗打桩，防止被风吹倒。

The farmer is ___staking the newly planted saplings to protect them from wind.

她在扑克游戏中押上了全部积蓄。

She is ___staking all her savings on the poker game.