Change your cover photoUpload Change your cover photoUpload Change your cover photo beethovenyucheng This user account status is Approved About About Comments Comments Nǐ hǎo Zhèng lǎoshī! Is there a way to say "Good day!" in mandarin? Or is it more common/normal to… On Step 1: Video Lecture Zhèng lǎoshī nǐ hǎo! Wǒ xìng Cheng. Wǒ jiào Beethoven Cheng. Thank you for these very detailed and helpful lessons.… On Elementary Chinese Course (HSK Level 1)