Taivo A Taiwan Mandarin dictionary

來路不明

láilùbùmíng

ㄌㄞˊ ㄌㄨˋ ㄅㄨˋ ㄇㄧㄥˊ

Simplified 来路不明

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

Keep 來路不明 and it comes back until you know it.

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