她使出全身力气抡起榔头砸向他的脑袋。She swung the hammer at his head with all her might.他用榔头和凿子铲墙。He used a hammer and chisel to chip away at the wall.他停下手里的活儿,放下榔头.He stops his work and puts down his hammer....
John Bardeen was also co-developer of the theory of superconductivity.约翰·巴丁也是超导电性理论的创立者之一。Invention of the point contact transistor by Brattain and Bardeen. ( December 23 ).12月23日, 布拉顿 和巴丁发明点式电视晶体管.Inventors were John Ba...