Uracil -- a pyrimidine found in RNA that base - pares with adenine.尿嘧啶 -- 核糖核酸中的一种嘧啶,与腺嘌呤形成碱基对.The missile control system composed of two pares, the controller and the controlled object.粗略地看,导弹控制系统都是由控制器和被控对象两大部分组成的....
Out of deference to him, I lowered my head as he prayed.出于对他的敬重，在他祈祷时我低下了头。He touched his forelock in mock deference.他手触额发假装尊敬。Do you treat your parents and teachers with deference?你对父母师长尊敬 吗 ?...