If you meet someone for the first time, you can say, as a way of being polite, that it is a pleasure to meet them. You can also ask for the pleasure of someone's company as a polite and formal way of inviting them somewhere. 荣幸 (用于初次见面礼貌地打招呼)例："A pleasure to meet you, sir," he said.“很荣幸见到您，先生，”他说。You can say "It's ...
