dorsal surface短语⁷²⁶³⁰ 基本例句 背侧面 The bilateral lingual root arteries and lingual body arteries are separated by median lingual septum wholly, only submucosal arterial networks of dorsal surface of the tongue run across midline; 舌两侧的舌根动脉和舌体动脉被舌中隔完全分开，仅有舌背面粘膜下动脉网越过正中线； cnki