英 [spɒnˈteɪniəsli] 美 [spɑːnˈteɪniəsli]
adv. 自发地，不由自主地；自然地
in a spontaneous manner
this shift occurs spontaneously
without advance preparation
同义词： ad lib / ad libitum / impromptu
... 9。 cortex：皮层 10。 spontaneously：自然地、本能地 Lieberman在电话采访中说：“语言似乎能压制大脑的这些基本情绪通路的反应—在这里是指扁桃体状物质”。 ...
...章 热力学(Thermodynamics)定律 热力学第一定律：能量守恒定律的一种形式 热力学第二定律： （1）热量不能自发地（spontaneously ）从低温物体传到高温物体（克劳修斯表述） （2）不可能从单一热库吸收热量，使之完全变成功，而不产生其他影响。
... sponsor捐助者、捐资者 spontaneously天生的、自发的、自愿的 contributor贡献者、捐献者 ...
不由自主地(spontaneously), 此释义来源于网络辞典。
spontaneous 自发的；自然的；无意识的
spontaneity 自发性；自然发生
spontaneousness 自然；任意
自发地；自然地；不由自主地
Many people spontaneously stood up and cheered.
许多人自发地站起来欢呼。
Usually a woman's breasts produce milk spontaneously after the birth.
通常女性在生孩子后乳房会自然泌乳。
It's whether a species has developed this ability spontaneously.
是一个物种是否自发地发展了这种能力。
"What you see here is the people's funeral, people paying their respects spontaneously on the streets, as they remind themselves that they propelled her from the streets,".
VOA : standard.2009.08.03
When we have an isolated system, the criterion that determineswhether something happens spontaneously is the entropy has to increase.
对于孤立系统,决定一个过程是否自发发生的判据为：,熵必须增加。
热力学与动力学课程节选 : 麻省理工公开课
OK, clearly we'd be much better off if we had some systematic quantitative way to tell whether something would happen spontaneously.
好，如果我们有一些系统定量的方法来判断,一个过程是否会自发进行,那就会更好了。
热力学与动力学课程节选 : 麻省理工公开课
The dogs pick up on that." "They know that their owner has just dissociated and a lot of them will just spontaneously nudge their owners to try to kind of get them back to consciousness."
VOA : standard.2010.05.18
It is well known that when deaf children interact they spontaneously create a sign language.
Tabletops are now following in the footsteps of fast fashion: updated regularly, spontaneously and often inexpensively.
Answer: It lowers the cost of information to the point where markets spontaneously grow.