like: mẫ âm trước trung
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Composite Words Listening Comprehension Oxford Topics Duolingo Topics 315 Activities
BEGINNER LEVEL
exact:
VNEN 
mẫ âm trước trung * ☊ 
middle front vowel * ☊
[ âm ] : (1) sound; (2) lunar; (3) Yin, female, negative, minus; (4) reading (of a Chinese character)
[ trước ] : before, in front, previously; faced with, in the face of, ahead of
[ trung ] : center, middle
[ trước ] : advance
[ trước ] : before
[ trước ] : front
[ trước ] : in advance
[ trước ] : previous
[ trước ] : previously
[ trước ] : prior
[ trung ] : mid-