spasm n. strong, sudden and uncontrollable tightening of a muscle or muscles constrict [k?n'strikt] -- v. 压缩,收缩 barricade ['b?rikeid] -- v. 设栅阻挡; n. 栅栏 bookcase n. piece of furniture with shelves for books resolution n. quality of being resolute or firm; determination proof...