大苏打 dàsūdá sodium thiosulfate Definitions Defs Origin Strokes Stroke Words Sentences Sents 大 dà adjective big big; large; great; vast; high in scale or intensity; (of a person) old; adult苏打 蘇打 sūdá noun soda soda; carbonated drink; chemical compound sodium carbonate used in food preparation and industrial manufacturing
