spontaneous

美音音标: [spɒn'teɪniəs] spontaneous
英音音标: [spɒn'teɪniəs] result.0.expl|add:"

同义
spontaneous self-generated
词性
a
解释
happening or arising without apparent external cause
示例
spontaneous laughter|spontaneous combustion|a spontaneous abortion

同义
unwritten spontaneous ad-lib
词性
s
解释
said or done without having been planned or written in advance
示例
he made a few ad-lib remarks