a red flag

뜻

a sign that something may be wrong or dangerous

무엇이 잘못되었거나 위험할 수 있다는 신호.

예문

1. 1A landlord who won't show you the flat before you pay is a red flag.
2. 2The missing reviews were a red flag, so we booked a different hotel.
3. 3When the seller asked me to pay in cash before I'd seen the car, that was a red flag.
4. 4Is it a red flag if a new friend never lets you meet their other friends?
5. 5The sudden silence in the team chat was a red flag that something had gone wrong.

문법

셀 수 있는 명사: a red flag, 복수형은 red flags. 동사 be, see, raise 뒤에 자주 쓴다.