The treatments can cause dangerous and even deadly reactions if not used carefully.

如果使用不当，治疗可能引起危险甚至致命的不良反应。

youdao

For mammals, apparently, being excluded from a group can be dangerous, and even deadly.

对哺乳动物来说，很明显，被族群排除在外是很危险的，甚至是致命的。

youdao

In the United States, health officials warn that drinking raw milk can be dangerous and even deadly.

在美国，卫生官员警告，喝生牛奶可能是危险的甚至是致命的。

youdao

Everyone knows life for refugees and migrant workers can be difficult, dangerous and even deadly.

VOA: special.2011.07.06

The treatments can cause dangerous and even deadly reactions if not used carefully.

VOA: special.2010.01.25

They can even be deadly. Infections of the gums and teeth can release bacteria into the blood system.

VOA: special.2009.03.11

Melting glaciers, hotter summers and migrations of plants, animals and even deadly microbes have convinced virtually every climate scientist on earth that human activity has indeed started to warm the planet.

CNN: Hot Air In Kyoto

The secrecy was serious: when he spoke of spirits, his smiling face became deadly sober and even scared.

ECONOMIST: Mau Piailug

But without this elephant's input of new money and ideas, the battle-front against malaria and other deadly diseases might present an even worse picture, especially if the field were left to governments and inter-governmental bodies.

ECONOMIST: Global health