世界屋脊

shì jiè wū jǐ

the roof of the world (usually refers to Tibet or Qinghai-Tibetan Plateau 青藏高原[Qing1 Zang4 gao1 yuan2])

世

shì

life

界

jiè

(bound form) boundary; border

屋

wū

(bound form) house

脊

jǐ

(bound form) spine; backbone