束狭 shùxiá bottleneck Definitions Defs Origin Strokes Stroke Words Sentences Sents 束 shù adjectivenoun to restrain (bound form) to control, limit, or restrain, as in the words 约束 yuēshù or 管束 guǎnshù狭 狹 xiá adjective narrow (bound form) narrow; limited in space or breadth