Beginner Level Intermediate Level Advanced Level
Composite Words Listening Comprehension Oxford Topics Duolingo Topics
315 Activities V
exact: like: tín hiệu cầu cứu
VNEN 
tín hiệu cầu cứu * ☊ 
distress signal * ☊
[ hiệu ] : store, shop; sign, signal, mark, brand, trademark
[ cầu ] : (1) bridge; (2) to request, demand, desire; (3) toilet; (4) sphere, ball; birdie (badminton)
[ cứu ] : (1) to save, rescue, deliver, relieve; (2) to study, research, examine, investigate