an example of pool, careless work

blunder

make droning sound

make droning sound

to make a continuous sound like that made by bees

buzz, vibrate

the state of being indiscreet; indiscreet behaviour

mistake

to leave a person when he or she is in difficulties and needs help; a sudden change of weight to one side; sudden roll or pitch

move toward with jerk

to fall in standard or quality

mistake

to hit the foot against something and (almost) fall; to speak with pauses and mistakes

slip, stagger