etc

In a sentence

• Eu gosto de frutas como maçã, banana, uva, etc.

  I like fruits such as apple, banana, grape, etc.

  Here, 'etc' is used to signify that the list of fruits is not exhaustive and suggests other similar items can be included.

• Eles compraram livros, canetas, papéis, etc., para o escritório.

  They bought books, pens, papers, etc., for the office.

  In this case, 'etc' indicates that the objects purchased for the office extend beyond those listed.

• Você pode usar materiais como alumínio, plástico, madeira, etc., na sua construção.

  You can use materials such as aluminum, plastic, wood, etc., in your construction.

  Here, 'etc' emphasizes that other materials apart from those mentioned can be utilized in construction.