spontaneousKK [spɑˋnteniəs] /spɑˈnteɪniəs/形容詞1臨時的、一時興起的、未經計畫的We took a spontaneous trip to the coast last weekend.上週末我們一時興起跑去海邊玩。2自然的、不做作的、直率的She has a warm, spontaneous manner that puts people at ease.她個性親切又不做作,讓人很放鬆。3自發的、自動的指反應、動作The announcement drew spontaneous applause from the whole room.這項宣布讓全場自發地鼓起掌來。4自發性的、自然發生的醫學、科學Doctors said the bleeding was spontaneous and had no clear cause.醫師說這種出血屬自發性,並無明確原因。