In order to make a quotation clearer or fit grammatically into your sentence you could have words and phrases and enclosed by

In order to make a quotation clearer or fit grammatically into your sentence you could have words and phrases and enclosed by brackets. These are placed around the change. The brackets always go together in pairs. Enclose words are intended to clarify meaning, provide a brief explanation, or to help integrate the quote into the writer’s sentence.

explanation:

shower, toothbrush, toasters, refrigerators,   and the lights

you use the lights to see and brighten a room. and with out them you cant see. you need a toothbrush to clean your teeth with out it stinky breath. shower to wash ya self and without it you stink. toaster to toast stuff without it nothing is toasted. and the refrigerator to keep stuff cold without it everything goes bad