isshuukanburi ni shokuyoku ga modotte, kyou wa asagohan o zenbu taberareta.

My appetite came back for the first time in a week, and today I was able to eat all of my breakfast.

Breakdown of isshuukanburi ni shokuyoku ga modotte, kyou wa asagohan o zenbu taberareta.

• は: topic particle
• を: direct object particle
• 今きょ日う: today
• が: subject particle

Questions & Answers about isshuukanburi ni shokuyoku ga modotte, kyou wa asagohan o zenbu taberareta.

What does 一週間ぶりに mean?

一週間ぶりに means for the first time in a week or after a week.

• 一週間 = one week
• ぶり = after an interval; for the first time in ...
• に marks it adverbially, so it modifies what follows

So 一週間ぶりに食欲が戻って means my appetite returned for the first time in a week.

A very common pattern is:

• Xぶりに ... = for the first time in X ...

Examples:

• 三年ぶりに日本へ行った。 = I went to Japan for the first time in three years.
• 久しぶりに会った。 = I met them for the first time in a while.

Why is there a に after ぶり?

In Xぶりに, the に helps the phrase act like an adverb, modifying the action or event that follows.

So:

• 一週間ぶり by itself = a one-week gap / after one week
• 一週間ぶりに戻る = to return after a week / for the first time in a week

In this sentence, に connects 一週間ぶり to 食欲が戻って.

Why is it 食欲が戻って and not 食欲を戻って?