giveaway
noun [ C ] uk/ˈɡɪv.əˌweɪ/ us/ˈɡɪv.əˌweɪ/
(GIFT)
（给顾客的）赠品
something that is given free to a customer
(TRUTH)
informal显露（某人）的感情；暴露（某人）的内心世界
something that tells or shows something secret, often without intending to
He said he'd given up smoking, but the empty packs in the bin were a dead giveaway (= clearly showed the secret truth). 他说他已经戒烟了，但是垃圾桶里的空烟盒让他彻底露了马脚。
giveaway
adjective [ before noun ] uk/ˈɡɪv.əˌweɪ/ us/ˈɡɪv.əˌweɪ/
（价格）低廉的
A giveaway price is very low.
The furniture shop's offering three-piece suites at giveaway prices. 家具店正以极低廉的价格出售一组三件套家具。