What are the possible links between facial expressions and emotion?
面部表情和情緒之間可能存在哪些聯(lián)系？
I can read Diana's thoughts from the changes in her facial expressions.
我能從戴安娜面部表情的變化看出她的想法。
Students should not worry about when exactly to use certain expressions.
學(xué)生不必?fù)?dān)心什么時(shí)候使用某些特定的表達(dá)。