Preliminary studies indicate there is a serious risk.

初步研究表明，它们存在严重的风险…

Preliminary studies indicate there is a serious risk….

初步研究表明，它们存在严重的风险...

Then any ant in the vicinity will be in serious risk of death.

然后,附近的蚂蚁将面临死亡的威胁。

But for various reasons, ranging from government lethargy to, it runs a serious risk of energy shortages at home.

但是，从政府的昏昏噩噩到环境保护者的游说，多种原因使巴西国内面临能源短缺的严重危险。

However, in my opinion, it should be considered when standard therapy has not been successful and in children where bleeding is a serious risk.

然而，在我看来，对标准治疗无效或出血为严重危险的儿童患者应考虑使用该药。

The only puzzle is why investors still accept such low yields on US government bonds despite the grim fiscal outlook and the serious risk of dollar depreciation.

唯一让人不解的是，即使经济前景糟糕、美元面临贬值的重大风险，投资者为何依然接受如此低收益的美国政府债券。