to tell someone our name so they can know us, or to tell them someone else's name so they can know each other, normally happening in the first meeting
介绍
a word we say when we see someone and want to greet them, or when we begin to talk on the phone
你好
a word we say when we are leaving someone or when they are leaving, or at the end of a phone call
再见! 祝你有个美好的一天!
something we say when we want to greet or say hello to someone in the morning
早上好
something we say to someone to show we are grateful to them for something that they have done for us or given us
谢谢
something we say when we want to say hello or goodbye to a person in the afternoon
下午好
something we say when we want to say hello or goodbye to a person in the evening
晚上好
something that a person spends time doing, particularly to accomplish a certain purpose
活动
a sentence, phrase, or word, used to ask for information or to test someone’s knowledge
问题
to ask someone questions about a particular topic on the TV, radio, or for a newspaper
采访