"来路不明"是个多义词，它可以指来路不明（谓语定语词）。
adj. unauthentic
在任何情况下，假冒药品总是来路不明，其成分也不可靠。
But in every case, the source of a counterfeit medicine is unknown and its content unreliable.
在任何情况下，假冒药品总是来路不明，其成分也不可靠。
But in every case, the source of a SFFC medicine is unknown and its content unreliable.
布兰奇小姐出走国外，在巴黎与一个来路不明的伯爵结了婚。
Miss Blanche goes abroad and marries in Paris a count with doubtful title.
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