spontaneously

ad. that happens in a natural way
自發(fā)地
He was never spontaneously warm or friendly toward us.
他對我們從未真心地熱情和友好過。

《新視野大學(xué)英語詞匯講解第509期:spontaneously》永久閱讀地址: http://www.jiazhineng.cn/yingyu/5402/