softening

'sɔfniŋ

n. the process of becoming softer

[机] 软化处理

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softening 由词根 soft（柔软）和后缀 -ening 组成，表示使某物变得柔软的过程或状态。可以记住 soft 是基础含义，-ening 表示变化。

例句

1. The softening of the butter makes it easier to spread on bread.

黄油软化后更容易抹在面包上。

2. The softening of the clay allows artists to shape it more easily.

粘土的软化使艺术家更容易塑形。

3. He noticed a softening in her voice when she spoke about her childhood.

当她谈到童年时，他注意到她的声音变得柔和。