gradate veinlet阶小脉
gradate from从…毕业
gradate veins[昆] 阶脉
gradate crossvein阶脉
gradate sorus[植] 顺次孢子囊群
gradate type级度型
Thais gradate蛎敌荔枝螺
gradate vein阶脉
gradate payment loan累进偿付贷款
V（动词） to change or cause to change imperceptibly, as from one colour, tone, or degree to another (从一种颜色、语气或温度到另一种)逐渐转化