wù wèi yán zhī bù yù
(idiom) don't say you haven't been forewarned (threat used by the PRC in international diplomacy)
勿
wù
do not
谓
wèi
to speak
言
yán
words
之
zhī
(possessive particle, literary equivalent of 的[de5])
不
bù
no; not so
预
yù
to advance
