/dɪ'skɜrsɪv/ a. (散漫的,不得要领的) tending to depart from main point or cover a wide range of subjects As the lecturer wandered from topic to topic, we wondered what if any point there was to his discursive remarks.
/ɪn'sɪdɪəs/ a. Syn. treacherous; stealthy; sly (阴险的,奸诈的,狡猾的,鬼鬼祟祟的) spreading harmfully in a subtle manner; designed or adapted to entrap More insidious is the whole issue of the second amendment.
/laɪ'sɛnʃəs/ a. Syn. amoral; unrestrained (不道德的,下流的,放纵的) amoral; unrestrained; lacking moral discipline or ignoring legal restraint Unscrupulously seducing the daughter of his host, Don Juan felt no qualms about the immorality of his licentious behavior.