土木形骸

earth and wood framework (idiom); plain and undecorated body

Tu (ethnic group) / surname Tu

earth / dust / clay / local / indigenous / crude opium / unsophisticated / one of the eight categories of ancient musical instruments 八音[ba1 yin1]

building / construction / civil engineering

(bound form) tree / (bound form) wood / unresponsive; numb; wooden

to appear / to look / form / shape

the human body / skeleton

bones of the body