Bangladesh is a state in south Asia, bordered by Burma and India. The capital of Bangladesh is Dhaka. People in Bangladesh speak Bengali.
Flesh is the soft parts of a person or animal, particularly the muscle and fat. Flesh can also refer to the soft, edible parts of fruit. Flesh is not usually used to refer to fish.
Something is fresh if it is new. This might mean it just arrived (a meal fresh from the oven), it was just made, or it just happened. Foods like fruit and vegetables are described as fresh if they look like they have been freshly made or picked.
Mesh is a type of fabric that is woven with holes in it. Mesh may be made from wire rather than cloth thread. You can buy mesh clothes and mesh insect screens. The photo is of a mesh pocket in a backpack.