*Bạn tham khảo nha
1. to begin communicating with someone, for example, by email or telephone: to get in touch
2. to continue communicating with someone, for example, by email or telephone: to keep in touch
3. new information on a particular topic: Formal
4. the different groups of people that you know: online forum
5. websites and computer programs that allow people to communicate on the internet: social network
6. a time when two or more people communicate with or react to each other: interaction
7. to say or do something in reply to something that has been said or done earlier: to respond
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