portion

Compared meaning: a part of a whole (noun).

比较义项：整体中的一部分（名词）。

• portion 本词

  A general, neutral word for a part of something (often food, land, or a task) given to or made for one person or purpose; it does not imply an exact numeric ratio or division among several people.

  泛指某样东西的一部分（常指食物、土地或任务），是分给或专为一个人、一种用途准备的一份；并不表示确切的数字比例，也不强调在多人之间进行分配。

  The recipe recommends a small portion of rice for each serving.

  食谱建议每份餐点搭配一小份米饭。

• percentage

  Expresses a part as a number out of a hundred; used mainly in statistics or when describing groups, surveys, or exam results, not for everyday physical portions or divided shares.

  把一部分表示为百分之几的数字；主要用于统计、描述群体、调查或考试结果，不用于日常的实物份量或人与人之间分配的份额。

  Only a small percentage of the population owns a car in that city.

  在那座城市，只有一小比例的人口拥有汽车。

• share

  A part of something that is allotted to a person as their portion when a whole is divided among two or more people; often used for money, work, or responsibilities.

  整体在两个或更多人之间分配时，分给某人的那一部分；常用于金钱、工作或责任方面。

  Each partner receives an equal share of the company's profits every year.

  每位合伙人每年都能获得公司利润中相等的一份。

All three mean a part of a whole. Portion is a neutral part given to someone. Percentage is a part shown as a number out of a hundred, used in statistics. Share is a person's part when a whole is divided among people, often money.

这三个词在这一义项中都表示“整体中的一部分”，但侧重点不同：portion 是最中性的说法，常指分给某人或用于某种用途的一份，不强调具体数字或人与人之间的分配；percentage 强调用百分之几的数字来表达比例，多用于统计、调查、群体描述等语境；share 强调整体被多人分摊后，某人应得或分到的那一份，常用于金钱、工作、责任等场合。这里不比较 share 用作动词“分享，共用”的用法。

Compared meaning: to divide or give out something (verb).

比较义项：分配（v.）。

• portion 本词

  Emphasizes dividing a whole into shares, often used for food or resources; usually informal and describes physically splitting something up.

  强调把一个整体分割成若干份，常用于食物或资源；用法较为口语化，侧重实际上把东西分开。

  She portioned the pizza into six equal slices for the children.

  她把披萨分成六等份给孩子们。

• allot

  Emphasizes formally assigning a fixed share or quota to someone, often time, money, or tasks, following a plan or rule; more formal in register.

  强调按照计划或规则，正式地给某人分配固定的一份，常用于时间、金钱或任务；语域更正式。

  Each department was allotted a fixed budget for the new project.

  每个部门都被分配了一笔用于新项目的固定预算。

Portion and allot both mean to give something out. Portion stresses dividing a whole into shares, often for food. Allot stresses formally assigning a fixed share, like time or money, following a rule. The noun use of portion, meaning 'a part', is not compared here.

两者都指把某物分给他人或各方，但 portion 更强调把整体切分成若干份，常用于食物或资源的分割；allot 更强调按规则或权限正式地指派一份定额，常见于时间、任务、预算等场合。此处不比较 portion 作名词表示“一份、一部分”的用法。