/ɪnvɪˈteɪʃən tʊ triːt/ – Phrase
Definition: Lời mời tham gia giao dịch.
A more thorough explanation: (CONTRACT LAW) an invitation to someone for them to make an offer for something that you have to sell; an indication that you are willing to negotiate the sale of something, but without being immediately bound if the other party accepts your original suggested price
Example: A price tag in a shop or a label on a website is just an invitation to treat.