The party started
spontaneously when everyone suddenly began dancing.
当大家突然开始跳舞时，聚会自然而然地开始了。
She
spontaneously decided to take a road trip without any prior planning.
她一时兴起，没有任何事先计划就决定去公路旅行。
The applause erupted
spontaneously from the audience, showing their appreciation.
掌声从观众中自然爆发出来，表达了他们的赞赏。
Spontaneous laughter filled the room as the comedian told a hilarious joke.
当喜剧演员讲了一个极好笑的笑话时，房间里充满了自发的笑声。
The protest was not planned; it happened
spontaneously in response to the news.
抗议活动并非事先策划，而是对新闻的直接反应，自然发生的。
The idea for the novel came to her
spontaneously during a morning walk.
写小说的灵感在她早晨散步时自然而然地涌现了出来。
Spontaneous combustion can occur when certain materials heat up to their ignition point.
当某些物质加热到其燃点时，可能会发生自燃现象。
He
spontaneously offered to help me move the furniture, which was a huge relief.
他主动提出帮我搬家具，这让我大大松了一口气。
The discussion became very engaging as participants contributed thoughts
spontaneously.
讨论变得非常引人入胜，因为参与者都自发地贡献了想法。
Her smile was so spontaneous and genuine that it immediately brightened up the room.
她的笑容自然而真挚，立刻让整个房间明亮起来。
The scholar said he thinks the development of China's recent urban cluster policy is based on "sound urban economics principles," for it "recognizes the efficiency of a new urban form that has spontaneously emerged in China during the last 18 years.
"Although most of the major cities had announced restrictions on home purchases, prices continued edging up in April, showing the necessity for local governments to react more spontaneously when surge signs appear," said Yan Yuejin, director of the Shanghai-based E-house China Research and Development Institution.
They include the spontaneous stage from 2019 to 2022 when those conscious enterprises would go first and spontaneously carry out actions to reduce carbon emissions.
Zhao said most of the activities were organized spontaneously by enthusiasts at that time.
However, he also said China's pet hospitals have strong resilience and flexibility as they sprung up spontaneously to meet market demand in their early development stage and have been adapting to the changing market environment.
She said translating for Chinese audiences through a phone camera can be both challenging and entertaining, which requires her to act spontaneously when taking long transit tours to the next exhibit.
她说，通过手机摄像头为中文观众进行翻译既充满挑战又颇具趣味性，这要求她在前往下一个展品的长途游览过程中做到即兴发挥。
Luo Lei, the CADA's deputy secretary-general, said the business environment of the used car market has improved as many groups have spontaneously formed faith alliances.
"Financial companies in the Bay Area have been spontaneously exploring the integration of their services for individuals and corporations in the region," said Xing Yujing, president of the Shenzhen Central Subbranch of the People's Bank of China, the country's central bank.