1
a Vietnamese
表示国籍时，冠词a不可省略。
He is a Vietnamese.
他是一个越南人。
越南人
先理解核心含义，再看它在真实句子里的用法。
越南人
a native or inhabitant of Vietnam
He is a Vietnamese.
他是一个越南人。
来自越南或有越南血统的人
A person or people from Vietnam or of Vietnamese descent.
越南菜；传统越南食物
Vietnamese cuisine; traditional Vietnamese food.
She is learning Vietnamese to communicate with her relatives.
她正在学习越南语，以便与亲戚交流。
Many Vietnamese have settled in this neighborhood.
许多越南人定居在这个社区。
I love Vietnamese food, especially pho.
我喜欢越南菜，尤其是河粉。
表示国籍时，冠词a不可省略。
He is a Vietnamese.
他是一个越南人。
语言名称前不加冠词。
She speaks Vietnamese fluently.
她流利地说越南语。
形容词修饰名词，无词形变化。
I love Vietnamese food.
我喜欢越南菜。
Not this
I eat Vietnam food.
Use this
I eat Vietnamese food.
越南是名词，不能直接修饰名词，应使用形容词形式Vietnamese。
Not this
There are many Vietnameses in my city.
Use this
There are many Vietnamese in my city.
Vietnamese的单复数同形，不能加-es变复数。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
越南菜
I love eating Vietnamese food, especially pho.
我喜欢吃越南菜，尤其是河粉。
越南语
She has been studying the Vietnamese language for two years.
她学越南语已经两年了。
越南人
The Vietnamese people are known for their resilience.
越南人以坚韧著称。
越南文化
Vietnamese culture is rich in traditions and festivals.
越南文化充满传统和节日。
越南社区
There is a large Vietnamese community in this city.
这个城市有一个大型越南社区。
越南烹饪
Vietnamese cuisine is famous for its fresh herbs and flavors.
越南烹饪以其新鲜香草和风味而闻名。
Use Vietnamese naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
越南(Vietnam)加上后缀-ese，表示‘越南人’或‘越南语’，联想‘ese’像‘易思’，容易想到是越南的。
Neutral register; applicable to both noun (越南人/越南语) and adjective (越南的) senses. 通常用于描述与越南相关的人、语言或文化，中性语气，适用于多数场合。
指人时可数，指语言时不可数；形容词可作定语或表语。
Dictionary facts from ECDICT, WIKTIONARY.