She pretended she wasn't excited but the expression on her face was a dead(= obvious) giveaway .
她假装不为所动，可脸上的表情却将她的心绪暴露无遗。
1.(招徕顾客的)赠品;(电台中的)有奖问答节目
2.泄露机密
1.a movement, action, or expression on someone’s face that shows the truth about something or that lets you realize something that should be a secret
2.a present that a company gives you to try to persuade you to buy things from them
1.very inexpensive, or free
1.The name is a bit of a giveaway because, just as it sounds, Silly Putty wasn't invented on purpose!
这个名字听起来有点儿像赠品，因为它是人们无意中发明的。
2.Another giveaway: he'll unconsciously detach from his friends by standing slightly apart, hoping to be seen as an inpidual.
另一个泄露他内心的小动作：他会不知不觉地和朋友稍稍拉开距离，使自己看起来像是独自一人。
3.In recent weeks, a consensus seemed to be emerging on left and right that some sort of cap on this distorting giveaway was necessary.
最近几周，左翼和右翼的一个一致的意见似乎是对这种变相的“赠与”设置某种上限是必要的。
4.She tried to hide her feelings, but the tears in her eyes were a giveaway.
她试图隐藏她的感情，但是眼中的泪水却泄露了她的真情。
5.It would be a giveaway sign to any HR person that the applicant has little experience in a professional environment.
这将是一个赠品签署任何人的人力资源申请人已没有什么经验的专业的环境。
6.Still, Ms. Jayalalithaa of the rival AIADMK party appears determined not to be outdone in the great giveaway.
即便如此，AIADMK的党魁贾雅拉莉妲显然也不打算在赠品大战中稍有落后。
7.eg: She pretended she wasn't excited but the expression on her face was a dead giveaway.
她假装不为所动，可脸上的表情却将她的激动暴露无疑。
8.They really love bargain all day long and usually require for more price off, giveaway and express fee off.
他们真的非常喜爱整天讨价还价，通常要求更多折扣、小样和免邮。
9.But the biggest giveaway that this isn't a serious research study is the adjectives chosen to describe the two groups of people.
不过，这无法成为一个严谨的调查所露出的最大马脚在于他们用来描述两组人群的形容词。
10.If you haven't worn it in the last year, move it out of the closet. Sort by destination: giveaway, resale shop, and keepsake.
如果某件衣服你去年没有穿，就将它移出衣柜。按它的去处分类：“送人”、“送到二手店”、或是“留作纪念”。