The survivors were ashen-faced and visibly shaken.生还者们面色惨白，看起来仍然惊魂未定。He was ashen and trembling.他脸色苍白，浑身发抖。He fell back, shocked, his face ashen.他吓得往后退了一步，面如死灰。...
In most nerves, there are both afferent or sensory nerve fibers and efferent or motor fibers.在多数神经, 有输入或感觉神经纤维和传出或马达纤维.Some juxtamedullary glomeruli have two efferent arterioles.某些近髓质肾小球具有两种出球小动脉.Transmitting nerve impul...