我的心里像装着一只小兔子似的,“怦怦”直跳.
It seems there is a little rabbit keeping hopping in my heart.
I have a butterfly in my stomach.我心里七上八下 （意译）
我紧张得嗓子好像被什么东西堵住似的,透不过起来.
I'm so nervous that seems my throat has been blocked by something and make me hardly take a breath.