1
the diffusion of [sth]
The diffusion of oxygen through the membrane is slow.
氧气通过膜的扩散很慢。
散布；分散
diffusions — plural of diffusion
先理解核心含义，再看它在真实句子里的用法。
散布；分散
the act of spreading something widely, or the state of being spread out
The diffusion of oxygen through the membrane is slow.
氧气通过膜的扩散很慢。
扩散；散布；分散
The act of diffusing or dispersing something, or the property of being diffused or dispersed; dispersion.
光经粗糙表面反射或透过半透明介质时的散射
The scattering of light by reflection from a rough surface, or by passage through a translucent medium.
流体分子因随机热运动而相互混合
The intermingling of the molecules of a fluid due to random thermal agitation.
文化、语言习俗或社会制度的传播
The spread of cultural or linguistic practices, or social institutions, in one or more communities.
The diffusion of perfume molecules through the air explains how a scent travels.
香水分子在空气中的扩散解释了气味如何传播。
The diffusion of new technology across the globe has accelerated in recent decades.
近几十年来，新技术在全球的传播加速了。
Oxygen diffusion in the lungs is essential for respiration.
氧气在肺部的扩散对呼吸至关重要。
The diffusion of oxygen through the membrane is slow.
氧气通过膜的扩散很慢。
在社会科学中，'diffusion'常译为'传播'。
Cultural diffusion has accelerated with globalization.
文化传播随着全球化而加速。
The diffusion of ink into water demonstrates Brownian motion.
墨水扩散到水中展示了布朗运动。
Not this
The idea diffusion quickly.
Use this
The idea diffuses quickly.
diffusion是名词，不能直接充当谓语动词，应使用其动词形式diffuse。
Not this
The diffusions of gases are important.
Use this
The diffusion of gases is important.
diffusion表示“扩散”时通常为不可数名词，不应使用复数形式，谓语动词也应用单数。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
气体扩散
Gas diffusion is faster at higher temperatures.
气体扩散在较高温度下更快。
文化扩散
Cultural diffusion has accelerated with the rise of the internet.
随着互联网的兴起，文化扩散加速了。
扩散过程
The diffusion process in solids is much slower than in liquids.
固体中的扩散过程比液体中慢得多。
创新扩散
The diffusion of innovation often follows an S-curve pattern.
创新扩散通常遵循S曲线模式。
Use diffusions naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象一滴墨水在清水中缓缓扩散，即diffusion。
通常用于学术或专业语境，如物理学中的粒子扩散或社会学中的文化传播，比较常见于正式书面语。
一般不可数，但表示具体扩散实例时可数
Dictionary facts from ECDICT, WIKTIONARY.