她大胆投资了多个创新项目，其中一些获得了回报。

She boldly invested in several innovative ___ventures, some of which paid off.

很少有登山者敢在暴风雪中攀登这座险峰。

Few climbers ___ventured to ascend this dangerous peak during the blizzard.

他大胆地提出我们也许应该尝试另一种方法。

He ___ventured that we might want to try a different approach.