深沟坚垒 shēngōujiānlěi strong fortifications Definitions Defs Origin Strokes Stroke Words Sentences Sents 深沟 深溝 shēngōu deep ditch deep ditch; trench; deep furrow; deep gully or ravine坚 堅 jiān fortification (bound form) a strong point; a fortification; armor垒 壘 lěi noun rampart A defensive wall or fortification used in military camps for protection
