心惊肉跳: shudder with fear; be jumpy; be terribly frightened; be filled with apprehension; feel nervous and creepy; have a moment of panic; heart beating and flesh shaking -- terrified; heebie-jeeb
我心惊肉跳得厉害: i knew that something was going to happen and i was very jumpy
下面看的人悬心吊胆心惊肉跳: the people watching below are tense and trembling with their hearts in their mouths