【例句】When the doctor told him that he is a HIV carrier, he did not turn a hair. 【误解】当医生告诉他是艾滋病携带者时,他的头发没变一根。 【正确】当医生告诉他是艾滋病携带者时,他摆出一副不在乎的样子。 【说明】not turn a hair意思是“面不改色”、“不动声色”。