Is the shipyard painter tired or tired of polishing?

The shipyard grinder is tired. Accord to that relevant public information of the query,

1, shipyard painters are not only very hard, but also paint is very toxic and harmful to people.

2. The shipyard polisher polishes the most tired and hard things. Some things are very difficult to polish, and it takes several hours to polish one. These two are relatively more tired than grinders.