bù jiàn guān cai bù luò lèi
lit. not to shed a tear until one sees the coffin (idiom)
fig. refuse to be convinced until one is faced with grim reality
不
bù
no; not so
见
jiàn
to see
棺
guān
coffin
材
cai
material
落
luò
to fall or drop
泪
lèi
(bound form) tears; teardrops