being careful with small amounts of money but careless with large amounts
"She refuses to buy a $10 book, but spends $100 on clothes; she's penny wise, pound foolish."
to focus and work hard for a long time
to abandon someone or something suddenly
a place or situation where things are lost, never to be foun...
To skip a class without permission
an early warning of potential danger
clearly defined; without confusion or ambiguity