early ion早离子earlyadv.早adj.早Early Childhood Caries婴幼儿龋early detection program早期探查方案Early surgical ligation早期结扎术early exercise training早期体育训练early social competence早期社会能力early period prevalence早期发生型early financial warning财务预警Early nutritional state早期营养状况early breakage of board早期断板Early-Middle Triassic早-中三叠世