Operator
Operator
Ladies and gentlemen, thank you for standing by. And welcome to the Zhihu Inc. Fourth Quarter and Full Year 2021 Financial Results Conference Call. At this time, all participants are in listen-only mode. After the speaker's presentation, excuse me, ladies and gentlemen, thank you for standing by. And welcome to the Zhihu Inc. Fourth Quarter and Full Year 2021 Financial Results Conference Call. At this time, all participants are in listen-only mode. After the speaker's presentation, there will be a question-and-answer session. Today's conference is being recorded. At this time, I would like to turn the conference over to Ms. Jingjing Du [ph] Head of Investor Relations. Please go ahead, ma'am.