He hazarded his life to save a drowning child yesterday .

他昨天冒险救了一位溺水小孩。

He hazarded that the following examinations might be easier .

他大胆猜想接下来的考试会简单些。

The fireman hazarded his life to save the child .

那位消防员冒着生命危险救了那孩子。

He hazarded that the examiner might be more lenient after a good lunch .

他大胆猜想监考者在丰盛的午餐后会变得更加宽容。

He hazarded all his money in the attempt to save the business .

他为挽救这家企业，不惜冒险投入他的全部金钱。