"day one" in Chinese (Simplified)

• 第一天
• 一开始

Definition

某事开始的那一刻；通常用来表示某项活动、工作或关系的“从一开始”。

Usage Notes (Chinese (Simplified))

多为口语表达，常见短语“from day one”。可表示字面意义（第一天）或引申为某事一开始，强调忠诚、持续性或承诺。

Examples

I have loved swimming since day one.

我从**第一天**起就喜欢游泳。

From day one, she did her best at work.

她从**第一天**开始就在工作中尽力而为。

He knew the answer on day one of class.

他在课堂的**第一天**就知道答案。

We've been friends since day one.

我们从**一开始**就是朋友。

She trusted me right from day one.

她从**一开始**就信任我。

It was clear this job would be tough from day one.

从**第一天**起，这份工作就注定很难。