B.词汇派生 16.________ n.建筑→________ adj.→________ adv. 17.________ n.同情→________ adj.→________ v. 18.________ adj.详细的;特定的→________ adv.→________ n.→________ v. 19.________ vt.使泄气→________ n.→________ adj. 20.________ adj.令人钦佩的→________ v.→________ n.