0 said, done etc of one’s own free will without pressure from others -- tự phát
1 natural; not forced -- tự nhiên
spontaneous behaviour.
Neonatal outcome of spontaneous and assisted twin pregnancies.
This data does not distinguish between spontaneous versus assisted reproduction.
The children in this study performed more poorly on elicitation than spontaneous language tasks.
In addition, nine were for the spontaneous speech sample, while two were for the scientific passage, and one was for the dramatic passage.
In contrast, in spontaneous speech, some of the children's third singular -s use reflected commentary on a present action.
Spontaneous interaction and elicited production are clearly separated.
The final counts for the main rating task were 12 words, 10 sentences, 1 read paragraph, and 1 spontaneous paragraph.
Paradoxically, for all the precision of its organisation, the piece gives the impression of being free and spontaneous, almost improvisatory.