like: sự suy sụp
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Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
sự suy sụp * ☊ 
weakness, decline * ☊
[ sự ] : deed, act, action event, occurrence, (classifier for actions, states)
[ suy ] : to consider, think, reflect; to decline, weaken
[ sụp ] : to collapse, cave in