I thought being exposed to radiation is dangerous.

我认为暴露在辐射下很危险。

youdao

This radiation pressure is thought to shape the tails of comets and is useful for pushing solar sails in space.

这种辐射压力被认为是彗尾形成的原因。 另外，它也是太阳帆在太空中前进的动力来源。

youdao

The World Health Organisation (WHO) however said the radiation impact was becoming more serious than first thought.

然而，世界卫生组织(WHO)表示辐射影响比原先想象的更加严重。

youdao

The Brown researcher thinks the particles are disappearing into the fireball's core and reappearing as thermal radiation, just as matter is thought to fall into a black hole and come out as "Hawking" radiation.

BBC: Artist's representation of a black hole,

Since then, she has undergone surgery, chemotherapy and radiation treatment, and was thought to be recovering.

NPR: Edwards Will Stay in Race Despite Wife's Cancer

Telling the public that radiation is even more deadly than they thought?

FORBES: Like We've Been Saying -- Radiation Is Not A Big Deal