rocket science
Meaning: something very difficult to understand
Example: I've no idea why Kelly can't make a spreadsheet, and it's not exactly rocket science is it? Read on
hit the books
Meaning: to study very hard
Example: I have an exam tomorrow, I need to hit the books tonight. Read on
breakout
Meaning: to escape from somewhere violently
Example: The breakout was so sudden that the guards did not even have the time to process what happened. Read on
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