← 単語を見るに戻るspontaneouslyadverb#19,326訳語思わずおもわず天然にてんねんに英語の定義in a spontaneous manner例文It occurred to me spontaneously.Tom's compost heap got so hot that it spontaneously combusted.似ている単語spontaneoussimultaneouslyinstantaneouslysubcutaneouslyspontaneitycontemporaneously← mmhmmtakeda →