萬無一失

wànwúyìshī

no danger of anything going wrong; no risk at all; perfectly safe, safely

* * *

wàn wú yī shī

adv. no risk at all

wàn wú yī shī

perfectly safe

* * *

wan4 wu2 yi1 shi1

surefire; absolutely safe (idiom)

* * *

萬無一失|万无一失 [wàn wú yī shī] ► surefire; absolutely safe (idiom)