palpitation

n 1 [U] act of palpilating 心悸; 颤动. 2 palpitations [pl] (periodof) rapid beating of the heart 心悸（期）: I get palpitationsif I run too fast. 我跑得太快时就心悸. * (fig 比喻) The thought of flying gives me palpitations, ie makes me very nervous. 一想到飞行我心情就紧张.

palliation, palliative, pallid, pallidly, pallidness, pallor, pally, palm, Palm Sunday, palm-oil, palmetto, palmist, palmistry, palmy, palpability, palpable, palpably, palpate, palpation, palpitate, palsied, palsy, palter, paltry, pampas, pampas-grass, pamper, pamphlet, pamphleteer, pan, pan-, pan-fish, pan-pipes, panacea, panache, panama, panatella, pancake, Pancake Day, pancake landing,