以下是几个使用 "risk doing sth" 结构的简单句子，并带有中文翻译：
I risked wasting my entire weekend by helping my friend with his project. （我冒险浪费了我整个周末的时间来帮助朋友做他的项目。）
They didn't want to risk damaging the expensive equipment. （他们不想冒险损坏昂贵的设备。）
He knew the investment was risky, but he risked it anyway because of the potential returns. （他知道这项投资有风险，但他还是因为潜在的回报而冒险尝试。）
在这些句子中，"risk doing sth" 结构表示冒险做某事的意思。