留土 Residual soil

预留土地 reserve area

残留土 satholith

土地预留区 land reserve zone

阿留申群岛之土语 Aleut

残留土、残积土 Residual soil

子叶留土型 hypogeal germination

留土的 hypogeal

残留黏土 Residual clay soil

子叶留土幼苗 hypogaeous seedling