VDict mobile
Dictionary
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Translation
English - Vietnamese
Vietnamese - English
Vietnamese - Vietnamese
French - Vietnamese
Vietnamese - French
Computing
English - English
Chinese - Vietnamese
Russian - Vietnamese
Adverb
by the year; every year (usually with reference to a sum of money paid or received)
he earned $100,000 per annum
we issue six volumes per annum
Noun
an electronic amplification system used as a communication system in public areas