It is dangerous to skate on a frozen lake.

This lake freezes in the winter.

I like to ski in winter.

Winter is the season when you can enjoy skiing.

Please bring out the winter clothes.

Winter is my favorite season.

We went for a picnic to the lake on the weekend.

We had a picnic at the lake over the weekend.

Fuyumiko is my best friend.

Let's go skiing next winter.