Vietnam + be + adjective/noun
Vietnam作为专有名词，通常不加冠词。
Vietnam is a beautiful country with a rich culture.
越南是一个拥有丰富文化的美丽国家。
越南
长期而艰难的战争或冲突,外国占领者无法取得胜利；1954 年至 1975 年间,由中方支持的北越共产党军队与由美方支持的南越军队之间进行的持久战争
a country in Southeast Asia, on the South China Sea; a communist state that gained independence from France in 1945
长期而艰难的战争或冲突,外国占领者无法取得胜利
A long and protracted war or conflict in which the dominating foreign occupier is unable to secure a victory.
越南
a communist state in Indochina on the South China Sea; achieved independence from France in 1945
1954 年至 1975 年间,由中方支持的北越共产党军队与由美方支持的南越军队之间进行的持久战争
a prolonged war (1954-1975) between the communist armies of North Vietnam who were supported by the Chinese and the armies of South Vietnam who were supported by the United States
My cousin is planning to visit Vietnam next summer.
我表姐计划明年夏天去越南旅游。
用法提示：Vietnam 作为专有名词指越南这个国家。
Vietnam has a long coastline along the South China Sea.
越南沿着南海拥有漫长的海岸线。
用法提示：Vietnam 在句中作主语，指越南这个国家。
She learned to cook several traditional dishes from Vietnam.
她学会了做几道越南传统菜肴。
用法提示：Vietnam 作介词 from 的宾语，表示来自越南。
Vietnam作为专有名词，通常不加冠词。
Vietnam is a beautiful country with a rich culture.
越南是一个拥有丰富文化的美丽国家。
介词搭配表示地点或方向。
She traveled to Vietnam last summer.
她去年夏天去了越南旅行。
作为越南国名的另一种拼写形式，在正式和非正式场合均可互换使用。
grammar · medium
易错句子I went to the Vietnam last year.
正确表达I went to Vietnam last year.
大多数国名前不加定冠词‘the’，‘Vietnam’是其中一员。
grammar · medium
易错句子She can speak Vietnam very well.
正确表达She can speak Vietnamese very well.
表示语言时应用‘Vietnamese’（越南语），而不是国名‘Vietnam’。
Vietnam指国家，Vietnamese指人或语言
访问越南
I plan to visit Vietnam next year.
我计划明年访问越南。
越南战争
The Vietnam War ended in 1975.
越南战争于1975年结束。
北越
North Vietnam was a communist state.
北越是一个共产主义国家。
南越
South Vietnam was a capitalist state.
南越是一个资本主义国家。
越南政府
The Vietnam government promotes tourism.
越南政府推广旅游业。
越南旅行
Vietnam travel is affordable and exciting.
越南旅行既实惠又刺激。
Viet
nam
我要去越南了。
Forrest Gump says he's going to Vietnam.
阿甘说他要去越南了。
我们刚刚在越南打仗。
The song 'Born in the U.S.A.' references fighting in Vietnam.
歌曲《生在美国》提到了在越南打仗。
Dictionary facts from ECDICT, WIKTIONARY.