The neural tube then might induce the formation of still other embryonic structures.神经管可能诱导其他胚胎结构的形成.A typical fluorescent lamp is a tube with metal electrodes at each end.日光灯通常是一根两端装有金属电极的管子。The U - tube method is recog...
水有源, 木有本.A stream has its source, a tree has its root.木有本,水有源.Every tree has its roots and every river has its source.爱金钱是万恶之源.The love of money is the root of all evils....
The recruits were put through a week of grueling endurance tests.新兵要接受为期一周艰苦的耐力测试。It has good endurance against grinding, aging and good airproof performance.具有良好的耐磨性 、 耐老化性和气密性.The exercise obviously will improve streng...