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become an astronaut
become 后接表示职业的可数名词单数时，需用 a/an；此结构表示成为某职业或身份。
He hopes to become an astronaut someday.
他希望有一天成为一名宇航员。
宇航员；航天员；太空人
先理解核心含义，再看它在真实句子里的用法。
宇航员；航天员；太空人
a person who is trained to travel in a spacecraft
He hopes to become an astronaut someday.
他希望有一天成为一名宇航员。
宇宙飞船或其他航天器上飞出地球大气层的机组人员,或受过训练执行该任务的人
A member of the crew of a spaceship or other spacecraft that travels beyond Earth's atmosphere, or someone trained to serve that purpose.
接受过航天器旅行训练的人
a person trained to travel in a spacecraft
My cousin dreams of becoming an astronaut and training at a space center.
我表弟梦想成为一名宇航员，并在航天中心接受训练。
AI contextual example
The astronaut carefully checked the equipment before stepping into the rocket.
宇航员在进入火箭前仔细检查了设备。
AI contextual example
Many astronauts spend months learning how to live in zero gravity.
许多宇航员花数月时间学习如何在失重状态下生活。
AI contextual example
the Russians called their astronauts cosmonauts
俄罗斯人称他们的宇航员为航天员。
WordNet
become 后接表示职业的可数名词单数时，需用 a/an；此结构表示成为某职业或身份。
He hopes to become an astronaut someday.
他希望有一天成为一名宇航员。
用介词 as 表示身份或职位；常见搭配动词有 work、serve、train 等。
She works as an astronaut.
她担任宇航员。
who 引导的定语从句修饰 astronaut，可补充具体经历；who 在从句中作主语时不可省略。
He is an astronaut who has walked in space.
他是一位曾在太空行走的宇航员。
Not this
There are many astronaut in the spaceship.
Use this
There are many astronauts in the spaceship.
汉语名词没有复数形式，学习者容易漏加 -s；astronaut 是可数名词，在 many 后必须用复数 astronauts。
Not this
The astronaut walked in the moon.
Use this
The astronaut walked on the moon.
汉语说“在月球上”，但英语表示在月球这类表面上用 on，不用 in。
Not this
She wants to become astronaut.
Use this
She wants to become an astronaut.
英语可数名词单数前通常需要冠词，而汉语没有冠词，所以应加 an。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
宇航员候选人
Hundreds of people apply to be astronaut candidates every year.
每年有数百人申请成为宇航员候选人。
宇航员训练
She completed two years of astronaut training before her first mission.
她在首次任务之前完成了两年的宇航员训练。
宇航服
An astronaut suit is heavy because it contains life-support equipment.
宇航服很重，因为它包含生命支持设备。
宇航员乘组
The astronaut crew practiced the emergency procedures many times before launch.
宇航员乘组在发射前多次练习应急程序。
前宇航员
A former astronaut is now the director of the space agency.
一位前宇航员现在担任航天局局长。
资深宇航员
The mission commander was a veteran astronaut with three spaceflights.
任务指令长是一位参加过三次太空飞行的资深宇航员。
我们都是地球号飞船上的宇航员。
In his book Operating Manual for Spaceship Earth, Buckminster Fuller described all human beings as astronauts on a spaceship we call Earth.
在《地球号飞船操作手册》一书中，巴克敏斯特·富勒将全人类描述为我们称之为地球的飞船上的宇航员。
Use astronaut naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 astronaut 里的 astro 当作宇航员名字阿斯特罗，他正在太空漫步。
语域：neutral 常见场景：news articles、science documentaries、daily conversation “astronaut”通常用于新闻报道、科普和日常对话，属于标准中性词汇，没有明显的正式或非正式色彩。
在美式发音中，'astronaut' 的最后音节为 /nɑt/，和 'not' 的发音相同。列表中的 'cosmonaut'、'aquanaut' 的 '-naut' 通常读作 /nɔːt/，类似于 'naught'，因此不押韵；'nautical' 和 'nautilus' 的开头 'nau' 读作 /nɔː/，也区别于 /nɑ/。'astronomy' 虽然拼写以 'astro' 开头，但重音和元音都不同。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.