like: chất khí
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Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
chất khí * ☊ 
gas * ☊
[ chất ] : matter, material, substance, matter, agent
[ khí ] : air; instrument, utensil, vessel
[ chất ] : matter
[ khí ] : gas