英语语法分析

Neither tetrose nor mannan group had metastasis of the liver, and the weights of liver in the two groups were significantly lower than in the control.

四糖组及甘露糖聚组均无肝外转移发生，两组小鼠的肝脏湿重也明显低于对照组。

Conclusion Both tetrose and mannan had the effects in blocking melanoma experimental liver metastasis, inhibiting transmigration of the liver, and prolonging the survival time of the mouse.

结论四糖及甘露聚糖均能阻断小鼠黑色素瘤实验性肝转移，并抑制肝外转移，延长小鼠的存活时间。