The reactions of fish to AC can be distinguished into four stages: electrifying, electrotaxis, electronarcosis and electrocuting.鱼对交流电的反应可分成四个阶段: 感电 、 定向 、 麻醉和击昏反应....
Pentagon spokes-man Williams says those talks are coming along quite well.五角大楼发言人威廉斯说那些会谈进展得相当顺利。My little granddaughter caught her heel in the spokes of her bicycle—it was a very nasty wound.我小孙女的脚跟夹到自行车的轮辐里了，伤得很严重。The ...