成纤维细胞是来源于胚胎中胚层的间充质细胞.Fibroblasts are mesenchymal cells, which are derived from the embryonic mesoderm.它与胚胎中胚层的形成以及左右体轴的决定有关.It is involved in mesoderm formation and left - right axis determination....
The ensuing row snarled up the work of the joint peace commission.随后的争吵把联合和平委员会的工作搅得一团糟。"Let go of me," he snarled.他气急败坏地喊道：“放开我。”The dogs snarled at the intruders.那些狗冲着闯入者狂吠不已。...