zuǐ shàng wú máo , bàn shì bù láo
see 嘴上沒毛，辦事不牢|嘴上没毛，办事不牢[zui3 shang4 mei2 mao2 , ban4 shi4 bu4 lao2]
嘴
zuǐ
mouth
上
shàng
(bound form) up; upper; above; previous
无
wú
not to have
毛
máo
hair
，
,
办
bàn
to take care of (a matter); to deal with (a task, procedure etc); to organize (an event)
事
shì
matter
不
bù
no; not so
牢
láo
firm
