do things blindly (/rashly); go about in a haphazard way ❍ 坂本少佐～地忙了多半宿，待一切都造成了事实，他才察觉到自己上了武工队的当。(冯志《敌后武工队》243) It took Major Sakamoto several hours to make head or tail of the situation. Then he realized he had been played for a sucker by the work team.