Calcium may aid in the prevention of colon cancer.钙可能有助于预防结肠癌。Here, too, the colon must be followed by a dash.这里也是一样, 应当在冒号后加破折号.Dr Lee believes that men who exercise can halve their risk of cancer of the colon.李医生相信，锻炼身...
He hit back angrily, saying such remarks were childishly simplistic.他愤怒地反击，说这些话太过幼稚。Then she stood up, wrapping her coat around her angrily.然后她站了起来，怒气冲冲地穿上大衣。"How many times have I heard that before?" Merchant complained...