spontaneous
- adj. 自发的；自然的；无意识的
英英释意
- 1. happening or arising without apparent external cause;
- "spontaneous laughter"
- "spontaneous combustion"
- "a spontaneous abortion"
- 2. said or done without having been planned or written in advance;
- "he made a few ad-lib remarks"
- 3. produced without being planted or without human labor;
- "wild strawberries"