两口子 (liǎng kǒu zi): husband and wife

The couple downstairs goes to the park every morning to practice tai chi together, and then they walk home hand in hand.

They've been married for ten years, and this couple has never had a fight; the neighbors all envy them.

I heard that couple opened a small restaurant last year; business is really booming, and they're busy until midnight every day before closing.

When this couple first moved in, they didn't even have all their furniture, and now their child is already in elementary school.