v be undecided about something; waver between conflicting positions or courses of action
v move to and fro
v hang in the air; fly or be suspended above
v be suspended in the air, as if in defiance of gravity
v hang over, as of something threatening, dark, or menacing
v. 鸟( hover的第三人称单数 ); 靠近（某事物）; （人）徘徊; 犹豫