深沟高垒 shēngōugāolěi strong defensive fortifications Origin Definitions Defs Strokes Stroke Words Sentences Sents 深沟 深溝 shēngōu deep ditch deep ditch; trench; deep furrow; deep gully or ravine高 gāo adjective high high; tall; above average in height, level, or degree垒 壘 lěi noun rampart A defensive wall or fortification used in military camps for protection