spontaneous [spɒnˈteɪniəs]
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基本释义
adj.自发的,不由自主的
英英释义
happening or done in a natural , often sudden way, without any planning or without being forced
参考例句
The eruption of a volcano is spontaneous. 火山的爆发是自发的。
Spontaneous applause broke out as soon as she finished speaking. 她一讲完,大家不约而同都鼓起掌来。
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