在從事工作的
Practice \Prac"tice\, v. t. [imp. & p. p. {Practiced}; p. pr. & vb. n. {Practicing}.] [Often written practise, practised, practising.] 1. To do or perform frequently, customarily, or habitually; to make a practice of; as, to practice gaming. ``Incline not my heart . . . practice wicked works.''
practicing adj : actively engaged in a career or way of life; "a practicing physician"; "a practicing Catholic"