How to Use "cog" with Example Sentences

1. Begin with europe , the weakest cog in the global engine .
2. The wheel engages with the cog and turns it .
3. Every subject is a british civil servant , a cog in the vast governmental bureaucracy .
4. Although john thinks he has an important job , he is really only a cog .
5. The red metal is a crucial cog in the global economy as its use in electronics and construction means it is found in almost every appliance and building .