They could fight shoulder-to-shoulder against a common enemy.

他们能同心协力地抗击一个共同的敌人。

《柯林斯英汉双解大词典》

They fell into step, walking shoulder to shoulder with their heads bent against the rain.

他们步伐一致，肩并肩低着头冒雨走着。

《柯林斯英汉双解大词典》

I walked shoulder to shoulder with Tom.

我和汤姆并肩走路。

youdao

These devices use rope-like material to carry movement from the shoulder to the prosthetic arm.

VOA: special.2009.03.10

He was on his feet. Shoulder-to-shoulder, we fought against the attackers.

VOA: special.2011.08.06

There was an involuntary shoulder-to-shoulder collision between the Australian captain and the exultant bowler afterwards.

BBC: Australia pegged back by Pakistan in Lord's Test

Five of us, crammed shoulder-to-shoulder, were working on a bold new model for journalism.

FORBES: Inside Forbes: Before It Was Called Native Advertising, a Team in a 'Box' Had an Idea

The Miller men -- both paratroopers -- didn't really plan to march shoulder-to-shoulder into harm's way.

CNN: Army dad, son take on Taliban; mom worries