A mature sour gum shaded the picnic area with its glossy leaves and brilliant fall color.

At the rooftop bar, we ordered several whiskey sours to toast the sunset.

The technicians wore specialized respirators when inspecting pipelines suspected of carrying sour gas.

The old meadow was dotted with sour gums that turned brilliant red in the fall.

After eating the spicy curry, I had a sour stomach and couldn't sleep.

After trying the exotic street food, several of us ended up with sour stomachs by midnight.

When he opened the jar, the unmistakable scent of sour diesel filled the apartment and everyone knew exactly what strain it was.

The otherwise beautiful performance was marred by a few sour notes near the end.

At the farmers' market, she picked up two jars of sour krouts to try with her sausages.

After a long week, we celebrated with a round of amaretto sours at the rooftop bar.