to expand and contract in a rhythmic mannerhis heart pitter-pattered with excitement as he waited for the right moment to propose
his heart pitter-pattered with excitement as he waited for the right moment to propose
beat, palpitated, pit-a-patted, pulsated, pulsed, throbbed
fluctuated, oscillated, vibratedquivered, trembled
英语同义词词典收录了63618条英语词条,基本涵盖了全部常用同义词或反义词的辨析及翻译,是英语学习的有利工具。