Başmühendis, asistanı ile el ele araştırma yaptı.
- The chief engineer did research hand in hand with his assistant.
John ve Mary'nin el ele yürüyüşünü izledim.
- I watched John and Mary walking hand in hand.
I found a wallet on the street, so I handed it in to the police.
... Google and many others need to work hand-in-hand to create ...
... hand-in-hand ...