Good evening, how are you doing? I have a question are the police and cops same? How we use them properly? If someone working in police station, how we can say that? He is working as a police offer? Or he is part of cops? Or he is working for police or for cops? Can we say he is police? Or he is cop? I can't get somehow, what would we say if an one of my family works in cops? Or in police Thanks in advance

How can I say “best service”in English? Extreme service? Ultimate service? Service to the extreme?

It’s cloudy today. Last night, my dad spent hours fixing his Dyson vacuum cleaner. The trigger was wracked. He made every effort to disassemble it, replaced a spare trigger that he got from a mysterious buddy, then restored the whole thing. Amazingly it worked. Well, not for much longer. This morning, he was frustratedly shouting something like "flimsy crap" and announced that the circuit board of the motor was on the fritz again. My mom suspected that he had broken it when assembling it last night. But fair’s fair, it did work well after he fixed the trigger, for a while at least. I think it’s just its time has arrived.

What's the difference between "find fault with sth" and " pick holes in sth" For instance: (1) Why are you always finding fault with my work? (2) Why are you always picking holes in my work? Thank you very much for reading.

I am look for a job, but they refused me that my english is poor.