如何分辨出可数名词和不可数名次,谢谢答:b. 有些以-s结尾的学科名词或国名,作单数用:phonetics(语音学),physics,optics(光学),politics;the United States, the United Nations, the Netherlands等。c. 有些和数词连用的名词,表示复数时仍保持单数形式:a ten-pound baby, a twelve-foot pole, two dozen eggs, three million dollars1.2.5 复合名词(...