attend vt.出席；照顾；contend vt. 坚决主张；争斗；distend v. （使）膨胀；extend vt.延长；扩大；intend vt.想要，打算；overextend v. 使…承担过多的义务；portend v. 预兆，预示；pretend v.假托，借口，假装；superintend v. 监督