二

• 拼音: èr
• 汉字拆解: 二 = two horizontal strokes representing the number 2

含义

Two; the number 2. The basic numeral for the quantity two.

Used in counting, numbering, and ordering (第二, second; 二月, February; 二楼, second floor). When counting objects with a measure word, 两 is used instead (两个人, two people, NOT 二个人). 二 is for abstract numbers, ordinals, and fixed expressions.

例句

1. 一加一等于二。
2. 我住在二楼。
3. 今天是二月二号。

用法指南

语境: numbers, everyday

语气: neutral

正确说法

• 第二个是我的。(The second one is mine.)
• 二加三等于五。(Two plus three equals five.)

错误说法

• 二个苹果 (When counting with measure words, use 两 — say 两个苹果 for 'two apples')

起源与历史

Two horizontal strokes representing the number two — one of the simplest Chinese characters, directly depicting quantity.

文化背景

世代: All ages

社会背景: Universal