单词not turn a hair
na.: 不动声色网络: 面不改色;镇定自若;难关又面不改容
镇定自若
使…吓一跳
When the doctor told him that he is a HIV carrier, He did not turn a hair.
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。