心跳乱了节拍
[xīn tiào luàn le jié pāi]
It translates as 'My heartbeat has gone off-beat,' figuratively meaning being in emotional turbulence or excitement. Heartbeats usually follow a rhythmic pattern, so deviating from this order suggests sudden and intense agitation caused perhaps by meeting someone attractive, falling deeply in love, or experiencing a thrilling moment that shakes up one's regular emotional rhythms.