Learn Chinese through stories | Mandarin Story | 保护环境 | Graded Reading Practise Intermediate HSK 3/4

*Tone changes for “bù“ (不) bù 4th tone = bú 4th tone. *Tone changes for “yī“ (一) yī 4th tone = yí 4th tone. yī 1st, 2nd, 3rd tone = yì 1st, 2nd, 3rd tone. * Tone changes for 3rd tone 3rd tone 3rd tone 3rd tone = 2nd tone 3rd tone e.g. Nǐ hǎo = Ní hǎo