lag

落后, 囚犯, 迟延, 桶板, 防护套

最后的

落后, 蹒跚, 缓缓而行, 滞后

hang (back) or fall (behind) in movement, progress, development, etc.; throw or pitch at a mark, as with coins; cover with lagging to prevent heat loss

落后于, 押往监狱, 加上外套

hang (back) or fall (behind) in movement, progress, development, etc.; throw or pitch at a mark, as with coins; cover with lagging to prevent heat loss