可见核黄素缺乏其嘴角出现唇干裂,此为对核黄素吸收障碍所致。
Antecedents: Being born with a moustache that does not extend to the corners of the mouth.前情:天生一副长不到嘴角的胡子。
Paul Ekman has also identified 'micro-expressions' as very brief flashes that betray inner feelings, such as when the corners of the mouth momentarily turn down in showing disgust.保尔·艾克曼认为“微观表情”一瞬即过,背叛了内心感受,例如嘴角偶然下倾意味着反感。