adv.背叛地；靠不住地；危险地
The mountain road bends treacherously. 山路蜿蜒曲折。
Full of guile;deceitfully or treacherously cunning. 狡诈的诡计多端的，欺骗的或背信弃义的狡猾
"So take heed to your spirit, that you do not deal treacherously. 所以当谨守你们的心，不可行诡诈。这是万军之耶和华说的。
When you say that I murdered him treacherously and foully, you lie. 你说我狡猾而肮脏地谋杀了他时，你说的是谎言。
Marlowe was killed by a man whom he was treacherously trying to stab. 马洛背信弃义正想捅死一人，结果被那人所杀。
