启动这个项目成本很高，但不入虎穴，焉得虎子。

Starting this project is costly, but ___nothing ___ventured ___nothing ___gained.

准备演示文稿很有挑战性，但不冒险，无收获。

Preparing the presentation was challenging, but ___nothing ___ventured ___nothing ___gained.

如果你想成就大事，请记住不入虎穴，焉得虎子。

If you want to achieve great things, remember that ___nothing ___ventured ___nothing ___gained.