封顶仪式 fēngdǐngyíshì topping-out ceremony Origin Definitions Defs Strokes Stroke Words Sentences Sents 封顶 封頂 fēngdǐng to top out To complete the main structure of a building by putting on the roof.仪式 儀式 yíshì noun ceremony The formal procedure and format for a ritual, ceremony, or celebration; rite