useful English idiomatic expressions

1. “Break the ice” Meaning: To start a conversation or make people feel more comfortable. Example: “To break the ice at the party, I said hello to the person next to me.”
2. “Cut corners” Meaning: To do something in the easiest or cheapest way, often badly. Example: “The company cut corners on safety to save money, which caused problems.”
3. “Hit the nail on the head” Meaning: To describe something exactly right. Example: “You’ve hit the nail on the head with your idea about the problem.”
4. “Piece of cake” Meaning: Something very easy to do. Example: “The test was a piece of cake; I finished it very quickly.”
5. “Cost an arm and a leg” Meaning: To be very expensive Example: “That new phone costs an arm and a leg; I can’t buy it now.”