頑張ろう

let's do our best, let's hang in there

→ 頑張る
頑張ろ do one's best, persevere + Volitional
verb · optative Rare #29,988
let's do our best, let's hang in there Volitional form of 頑張る, used to encourage oneself or others.
JA: 試験に合格するために、最後まで頑張ろう。
EN: Let's do our best until the end to pass the exam.
Conjugation of 頑張る

一緒に協力してさらに頑張ろう

Let's work together and try even harder.

頑張ろう

Let's do our best!

頑張ろう

Let's do our best.

— ラブ・アクチュアリー (2003)

頑張ろう

Let's do our best.

— 生きる (1952)

頑張ろう

Let's do our best, okay?

頑張ろう

Let's do our best.