1. About 25 species: Asia, Europe; one species cultivated in China. ��Լ25�֣����ޣ�ŷ�ޣ����й�����ĵ�һ�֡�
2. Probably one species: Mediterranean region; cultivated in China. ����һ�֣����к����������й�����ġ�
3. Students must be cultivated to have the ability to analyze and solve problems. ��������ѧ������һ�ַ�������ͽ�������������
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adj.
1. (of land or fields) prepared for raising crops by plowing or fertilizing
2. no longer in the natural state; developed by human care and for human use
3. marked by refinement in taste and manners