机械师 in English:

The mechanic assembled the engine.

I had to pay the mechanic £100 to repair my car.

Take it to a mechanic, and get it fixed.

A skilled mechanic earns decent wages.

The mechanic said the repair would not take long.

Tom found a job as a mechanic.

He works as a mechanic in his father’s garage.

My brother is a mechanic

I'm a mechanic and I wanted to open my own shop.

Ari is a mechanic.

The mechanic soon fixed up the machine.