冷蔵庫の中

inside the refrigerator

→ 冷蔵庫
phrase Rare #26,623
inside the refrigerator 冷蔵庫 means “refrigerator,” and 中 means “inside.” に marks a location or destination, while を can mark the inside as the object being looked at.
JA: 冷蔵庫の中に牛乳があります。
EN: There is milk inside the refrigerator.

トム冷蔵庫の中を見た

Tom looked inside the refrigerator.

冷蔵庫の中だよ

It’s in the refrigerator.

冷蔵庫の中空っぽだわ

The refrigerator is completely empty.

トム冷蔵庫の中覗いた

Tom peeked inside the refrigerator.