En hiver, le bébé reste dans sa poussette même quand mon fils court partout.

In winter, the baby stays in the stroller even when my son runs everywhere.

Breakdown of En hiver, le bébé reste dans sa poussette même quand mon fils court partout.

• mon: my
• en: in
• dans: in
• rester: to stay

Questions & Answers about En hiver, le bébé reste dans sa poussette même quand mon fils court partout.

Why is it en hiver and not dans l’hiver?

En hiver is the normal French way to say in winter when you mean the season in a general sense.

• en été = in summer
• en hiver = in winter
• au printemps = in spring
• en automne = in autumn

Dans l’hiver would sound unusual here. It might only appear in a more literary or very specific context, not in an ordinary sentence like this.

Why does it say le bébé instead of un bébé?

Le bébé means the baby, while un bébé means a baby.

French often uses the definite article when the speaker has a specific person or thing in mind, even if English might sometimes be looser about it. Here, it sounds like the speaker is talking about a particular baby that is known in the situation, so le bébé is natural.

What does reste mean here?

Here, reste comes from rester, which often means to stay or to remain.

So le bébé reste dans sa poussette means the baby stays in the stroller / pushchair.

It does not mean that the baby is actively going somewhere. It suggests staying in that place rather than moving around.