A1 noun 中性 #3,596 最常用

境界

kyōkai /kʲoːka i/

A physical or conceptual line that marks the limit or division between two areas, states, or things. It is used to describe where one thing ends and another begins, such as a land border or the division between work and private life.

例句

3 / 5
1

この川が、隣の町との境界です。

This river is the boundary with the neighboring town.

2

両国は境界線の画定について話し合った。

Both countries discussed the definition of the boundary line.

3

仕事と休みの日の境界がなくなってきた。

The boundary between work and days off has started to disappear.

词族

名词
境界
Verb
境界づける
相关
境目
💡

记忆技巧

Think of a 'meeting' (Kai) at the 'border line' (Kyo). Visualize a line on a map separating two worlds.

快速测验

公私が混ざらないように、仕事とプライベートの___をはっきりさせる。

正确!

正确答案是: a

例句

1

この川が、隣の町との境界です。

everyday

This river is the boundary with the neighboring town.

2

両国は境界線の画定について話し合った。

formal

Both countries discussed the definition of the boundary line.

3

仕事と休みの日の境界がなくなってきた。

informal

The boundary between work and days off has started to disappear.

4

この論文は、夢と現実の境界を扱っている。

academic

This paper deals with the boundary between dreams and reality.

5

プロジェクトの責任の境界を明確にしましょう。

business

Let's clarify the boundaries of responsibility for the project.

词族

名词
境界
Verb
境界づける
相关
境目

常见搭配

境界を越える to cross a boundary
境界を定める to set a boundary
境界を接する to share a border
曖昧な境界 a vague boundary
明確な境界 a clear boundary

常用短语

生死の境界

the border between life and death

境界を画する

to draw a line / to distinguish

境界を侵す

to trespass or violate a boundary

容易混淆的词

境界 vs 限界 (genkai)

Genkai refers to a limit or maximum capacity (like your physical limit), while Kyōkai refers to a dividing line between two entities.

📝

使用说明

Use this word when discussing the point where two different things meet or separate. It is equally common in geographic, social, and psychological contexts.

⚠️

常见错误

Don't confuse it with 'kokkyō' (国境), which is specifically for international borders; 'kyōkai' is more general.

💡

记忆技巧

Think of a 'meeting' (Kai) at the 'border line' (Kyo). Visualize a line on a map separating two worlds.

📖

词源

Originally a Buddhist term referring to the sphere of one's sense organs or the environment one inhabits.

语法模式

Used with the particle 'の' (AとBの境界) Can be used as a compound noun like 境界線 (boundary line)
🌍

文化背景

In Japanese aesthetics and architecture, boundaries (like engawa or fusuma) are often fluid rather than hard walls, reflecting the concept of 'ma' (space).

快速测验

公私が混ざらないように、仕事とプライベートの___をはっきりさせる。

正确!

正确答案是: a

相关词

溶解

A1

The process by which a solid, liquid, or gas forms a solution in a solvent. It specifically refers to a substance becoming incorporated into a liquid to create a homogeneous mixture.

凝固

A1

凝固 (gyōko) refers to the physical process where a liquid changes into a solid state, typically due to cooling or a chemical reaction. It is most commonly used in scientific contexts like chemistry, geology, and medicine, such as describing blood clotting or the solidification of lava.

結晶

A1

A solid material whose atoms are arranged in a regular, repeating pattern, commonly known as a crystal. It is also used metaphorically to describe the beautiful or tangible result of long-term hard work and effort.

原子

A1

An atom is the basic building block of all matter and the smallest unit of a chemical element. It consists of a dense central nucleus surrounded by a cloud of negatively charged electrons.

元素

A1

A chemical element, which is a fundamental substance that cannot be broken down into simpler substances by chemical means. It refers to the basic building blocks of matter listed on the periodic table.

混合物

A1

A substance made by combining two or more different materials without a chemical reaction occurring. It can be used in scientific contexts to describe chemical blends or in general contexts to describe a physical combination of items.

溶質

A1

A solute is a substance that is dissolved in another substance (called a solvent) to create a solution. In a mixture like salt water, the salt is the solute because it is the part that gets dissolved.

酵素

A1

A biological catalyst, usually a protein, that speeds up chemical reactions in living organisms. In Japanese culture, the term is frequently used in the context of health, digestion, and fermented foods.

酸素

A1

Oxygen is a colorless, odorless gas that is essential for the respiration of almost all living things. It makes up about 21% of the Earth's atmosphere and is a fundamental element in chemistry and biology.

塩素

A1

A chemical element (symbol Cl) that is a yellow-green gas with a strong smell. It is widely used for disinfecting swimming pools and tap water, as well as in cleaning products like bleach.

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