a red flag
英 /ə red flæɡ/
中文釋義
危險訊號（戀愛）
A warning sign that something might be wrong or concerning.
常用搭配
- a huge red flag巨大警訊
- that's a red flag這是危險訊號
- so many red flags一堆危險訊號
例句
- He got jealous fast, and that's a red flag.他很快就喫醋,這是個危險訊號。
- Constant excuses from a vendor are a red flag.供應商不停找藉口是個危險訊號。