但是科学家们无法知道会产生什么影响，Fievet说，因为在实验室中安全地操作这些放射性同位素非常困难。

But scientists just don't know what the effects will be, Fievet says, because handling these radionuclides is just too hard to do safely and efficiently in the lab.

youdao

但是科学家们无法知道会产生什么影响，Fievet说，因为在实验室中安全地操作这些放射性同位素非常困难。

But scientists just don't know what the effects will be, Fievet says, because handling these radionuclides is just too hard to do safely and efficiently in the lab.

youdao