they make a nice couple إنّهما يُشكّلان ثُنائيّا رائِعًا - this place is suitable for couples (هذَا المكَانُ مُناسِبٌٌ (للأزواجِ - * الأزواج here means couples not husband and wife.

they make a nice couple انهما يشكلان ثنائياً رائعاً to read it: anhoma yoshakhn son'in ra' an this place is suitable for couples هذا المكان مناسب للاحباب (الأزواج to read: haza al-makan monasab la-ahbab ( al-azwag الاحباب mean lover الازواج mean married that's the nearst mean in Arabic for couples u can choose one of them