常见例句pollen grains 2- or 3-nucleate, colpi 1 or 2(or 3), distal or subequatorial. 花粉粒2-3核，1或者2(或者3)沟，远轴或者近赤道面。subequatorial belts 副赤道带subequatorial climate 副赤道气候 返回 subequatorial