grounding

n [sing] ~ (in sth) teaching of the basic elements of a subject 对某学科基本要素的教授; 基础; 底子: a thorough grounding in grammar 对基础语法的透彻教授.

grotesque, grotesquely, grotesqueness, grotto, grotty, grouch, grouchy, ground, ground control, ground crew, ground floor, ground rule, ground speed, ground staff, ground swell, ground-bait, ground-nut, ground-plan, ground-rent, grounded, groundless, groundlessly, grounds, groundsel, groundsheet, groundsman, groundwork, group, group captain, group practice, group therapy, groupie, grouping, grouse, grove, grovel, groveler, grovelling, grow, grow on,