1
a portion of sth
表示整体中的一部分
She ate only a small portion of the cake.
她只吃了一小块蛋糕。
部分；一份
先理解核心含义，再看它在真实句子里的用法。
部分；一份
a part of something larger; a piece of something
She ate only a small portion of the cake.
她只吃了一小块蛋糕。
分配的数量；一份。
An allocated amount.
与包含它的事物相关的某物
something determined in relation to something that includes it
从整体中分出或分离的部分；任何事物的分离部分。
That which is divided off or separated, as a part from a whole; a separated part of anything.
人造物的一部分
something less than the whole of a human artifact
She only ate a small portion of the cake.
她只吃了一小块蛋糕。
AI contextual example
The software project was divided into several portions.
这个软件项目被分成了几个部分。
AI contextual example
He gave each child an equal portion of candy.
他给了每个孩子等份的糖果。
AI contextual example
I read a portion of the manuscript
我读了一部分手稿
WordNet
表示整体中的一部分
She ate only a small portion of the cake.
她只吃了一小块蛋糕。
指食物的份量
The restaurant serves generous portions.
这家餐厅供应量很足。
Not this
A large portion of the problem is solved.
Use this
A large part of the problem is solved.
portion通常指具体分配的一份或一客（如食物），而part用于抽象概念或整体的一部分。problem为抽象概念，用part更地道。
Not this
He ordered two portion of fries.
Use this
He ordered two portions of fries.
portion是可数名词，复数形式为portions，在数量词后必须加-s。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
一份……；一部分……
She ate a portion of the cake.
她吃了一块蛋糕。
大份
The restaurant serves large portions.
这家餐厅份量很大。
小份
I'll have a small portion of rice.
我要一小份米饭。
份量大小
Portion size is important for weight control.
份量大小对控制体重很重要。
份量控制
Many diet plans emphasize portion control.
许多饮食计划强调份量控制。
提供一份
The meal serves a generous portion.
这顿饭份量很足。
我的肉体和我的心肠衰残；但神是我心里的力量，又是我的福分，直到永远。
This verse from Psalm 73:26 in the Bible uses 'portion' to mean a person's lot or inheritance, often interpreted as God being the believer's ultimate share.
这节来自圣经诗篇73:26的经文使用'portion'来表示一个人的份或产业，常被解释为上帝是信徒最终的福分。
Use portion naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象港口（port）分出一份（ion）货物，每一份就是portion。
常见场景：restaurant、home dinner 通常用于描述食物的分量，多用于餐厅或家庭用餐场景。
可数名词，常与 of 连用表示'一部分'。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.