endure, bear

I bear the heat.

私は暑さに耐えます

I bear the heat without complaining.

私は暑さに黙々と耐えます

I bear the harsh heat without complaining.

私は厳しい暑さに黙々と耐えます

I bear the harsh heat without complaining at the outdoor construction site.

私は屋外の工事現場で厳しい暑さに黙々と耐えます

I bear the harsh heat without complaining at the outdoor construction site in the middle of the day.

私は真昼に屋外の工事現場で厳しい暑さに黙々と耐えます