Expressing desires
We use would with the main verb like to express or inquire...

Likelihood and certainty
Like we saw with will, we can also use would to express t...

Creating the future tense in the past
When a sentence expresses a future possibility, expectation...

The original link: https://www.thefreedictionary.com/Modal-Auxiliary-Verbs-Would.htm#Definition

以致于要不是因为我最近买了几个快充插头，我都没有意识到我之前用的充电头是十多年前的功率很低的款式