bù shí lú shān zhēn miàn mù
lit. not to know the true face of Lushan Mountain (idiom)
fig. can't see the forest for the trees
不
bù
no; not so
识
shí
to know
庐
lú
hut
山
shān
mountain; hill (CL:座[zuo4])
真
zhēn
really
面
miàn
variant of 麵|面[mian4]
目
mù
eye