Sadrn.萨德尔sadadj.悲哀的；忧愁的；伤心的sad and shrill cries凄厉的喊叫声sad state of affairs差的形势; 糟糕的情况sadistic personality施虐色情人格SADC Office of Energy南部非洲发展共同体能源机构sadness and happiness悲与喜sad to leave hometown离乡之愁Saddam Hussein regime圆盘型记录仪表Sad old men in Harlem抄网渔业sad about the accident为此事故而悲伤sad in staying at home居乡之愁