常见例句雙語例句The barrier function of intestinal tract always descents at different level after burned, including mechanical barrier, biologic barrier and immunologic barrier.燒傷後腸道三大屏障功能均有不同程度下降，包括腸粘膜機械屏障損害，出現粘膜糜爛及潰瘍； 返回 biologic barrier