膨胀 péngzhàng HSK7 expand Definitions Defs Origin Strokes Stroke Words Sentences Sents Showing: expand All meanings 2 péngzhàng 2 expand 1inflate 1 1 sentence for 膨胀 (péngzhàng — expand) 气体受热后体积会膨胀。 qìtǐ shòurè hòu tǐjī huì péngzhàng. Gas expands when heated. Source: Dong Chinese Dictionary