hover between(v.+prep.)
犹豫不决be undecided between
▲hover between
I'm hovering between the concert and the play tonight.我犹豫不决今晚是听音乐会还是看戏。

hover over(v.+prep.)
▲hover over sb
1.停留于,盘旋于remain still or nearly still in the air above
The bird is hovering over a mouse.这只鸟在一只老鼠上方盘旋。
2.威胁threaten
You don't hover over him.你不要威胁他。

hover round(v.+prep.)
在…身边等候wait near
▲hover round sb
He hovered round his father.他在他父亲身边等候。

用作不及物动词
▲S+～(+A)
A hawk hovers in the sky.一只老鹰在天空盘旋。
You don't hover round the table.你不要围着桌子走来走去。
He is hovering between life and death.他处于生死之间。

［同义词］   falter, waver
［词源］＜中古英语hoveren(盘旋,徘徊)