shoulder-to-shoulder

Adverb

not-comparable

In close proximity; side-by-side. / Whilst closely cooperating.

Japanese Meaning

肩を並べて、並んでいる様子 / 密接に協力し合う状態

The volunteers worked shoulder-to-shoulder to prepare the shelter for the incoming storm.

ボランティアたちは迫り来る嵐に備えて避難所を準備するために肩を並べて働いた。

Sense（1）

In close proximity; side-by-side.

Sense（2）

Whilst closely cooperating.