視如土芥

to regard as useless / to view as no better than weeds

as / as if / such as

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]

see 芥藍|芥蓝[gai4 lan2]

mustard

to look at / to regard / to inspect