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)溝，遠軸或者近赤道麪。subequatorial belts 副赤道帶subequatorial climate 副赤道氣候 返回 subequatorial