I can't operate without lights.

没有光线我无法行动。

youdao

I can't operate in an environment like that.

我无法在这种环境下继续工作。

youdao

I can't operate! Call another doctor, 'and rushes out.

叫别的医生吧。然后他就走了。

youdao

For instance, when I first became disabled I couldn't even ring an alarm bell if I needed help but now I can operate many items of equipment in my home.

CNN: 'I lived in an iron lung for seven years'