of or relating to Vietnam, its people, or their language 越南的;越南人的;越南语的
(复同单)
a native or national of Vietnam, or a person of Vietnamese descent 越南人,越裔
[mass noun]the language of Vietnam, spoken by about 60 million people. It probably belongs to the Mon-Khmer group, although much of its vocabulary is derived from Chinese 越南语(约有6,000万使用者,许多词汇源于汉语,但可能属于孟高棉语族)