Is it heavy work to lift something weighing 30 Jin?

Thirty pounds is an easy job. Of course, if you are a woman, that's another matter.

Another is to lift 30 kilograms according to the length of time. If you lift it for n minutes, it's not an easy life.

But under the usual concept, thirty pounds is light work.

Personally, I think it is not a heavy job to consider the duration of more than 120 kg.