bị mất nước 
to be dehydrated [ bị ] : (1) bag, (knap)sack; (2) to suffer, undergo, experience, (suffering passive marker); (3) to prepare for in advance
[ mất ] : (1) to die, pass away, vanish; (2) to lose, spend, take (money, time)
[ nước ] : country, nation, state; water, liquid (for drinking); gum(s) (flesh surrounding teeth)
Most Common Compounds Set 1:
Most Common Compounds Set 2 :