1. He was not content to show that order emerged spontaneously and inevitably. ����������֤�������Է��ز��ɱ���س��֡�
2. In 1989, we began spontaneously, then rushed to attend to the gate (temple) year is the Year of the Rooster? ��1989�꣬���ǿ�ʼ��Լ��ͬ�����˺������ȿֺ�Ҫ�μ���¥�����ᣩ��һ���Ǽ��ꣿ
3. But until now, HES cell cultures had a tendency to spontaneously differentiate, that is, to veer off without warning into a developmental pathway. ��ĿǰΪֹ�������е�HESϸ�����Է��ֻ�������Ҳ����˵������䲻���ת��ij�������IJ�����
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adv.
1. in a spontaneous manner
2. without advance preparation