ドキドキ， どきどき， どきんどきん， ドキンドキン
1. thump-thump, bang-bang, pit-a-pat, pitapat, pitter-patter
2. to beat fast (of one's heart), to throb, to pound, to palpitate
扑通扑通；(心脏)跳动得很快，悸动
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ときめき
1. beating (of the heart, with joy, excitement, etc.), palpitation, throbbing, pounding, fluttering
心跳（因喜悦、兴奋等），悸动，搏动，怦怦跳，扑通跳
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@ 擬態語， ぎたいご
1. phenomime, mimetic word, word that mimics an action, condition, or manner that does not make a sound (e.g. "damp", "calmly")
拟态词，即模仿某种无声动作、状态或方式的词语