grading
n. 分阶段;定等级;坡度缓和; v. 定等级;减缓坡度(grade 的现在分词形式)
n.等级,坡度缓和,分阶段
cartulary delirifacient horsefaced march posthypnotic saltirewise下载迅蛙App
n. 分阶段;定等级;坡度缓和; v. 定等级;减缓坡度(grade 的现在分词形式)
n.等级,坡度缓和,分阶段
cartulary delirifacient horsefaced march posthypnotic saltirewise