spontaneously
adverb uk/spɒnˈteɪ.ni.əs.li/ us/spɑːnˈteɪ.ni.əs.li/
自然的，自发的
in a way that is natural, often sudden, and not planned or forced
This story may prompt you to burst spontaneously into uncontrollable sobs. 这个故事可能会让你不由自主地抽泣起来。
- More examples
- They gave him a mike, and he spontaneously interviewed everyone.
- My best friend, who doesn't have kids, always expects me to do things spontaneously with her.
- Hundreds of people could spontaneously appear at my house for a party.
science, medical specialized自发的
without any obvious outside cause
The liquid spontaneously ignited. 液体发生自燃。
Blood clots can occur spontaneously in some people. 在一些人身上可能自发产生血栓。
They found that fat contained some cells that spontaneously divided into more specialized cells. 他们发现脂肪中含有一些细胞，会自发分裂为分化程度更高的细胞。
- More examples
- Nerve gases quickly affect the central nervous system. A person can't breathe, their eyes start blinking and their muscles move spontaneously.
- About 90% of patients with acute low back problems recover spontaneously within a month.
- Stem cells grown in petri dishes spontaneously try out new fates.
See: spontaneous