来路不明

lái lù bù míng

Định nghĩa

1. unidentified origin
2. no-one knows where it comes from
3. of dubious background

Từ cấu thành 来路不明

• 不 bù: no; not so
• 来 lái: to come
• 路 lù: road
• 不明 bù míng: not clear
• 来路 lái lù: incoming road
• 明 míng: bright