1盘旋, 悬停
(of a bird, aircraft, etc.) to remain at one place in midair 2犹豫, 摇摆不定
be undecided about something; waver between conflicting positions or courses of action 4盘旋, 悬浮
be suspended in the air, as if in defiance of gravity 5盘旋, 笼罩
hang over, as of something threatening, dark, or menacing