1、Nevertheless, experts say the illicit trade is still thriving.
盡管如此，專家們說非法效果仍然十分嚴重的。

2、A key to the illicit trade is use of a network by buyers and sellers that conceals their identity.
買家和賣家利用網絡進行非法交易的關鍵在于可以隱藏身份。

3、He conceded that the illicit trade was thriving all the same.
他也承認非法交易依然在繼續(xù)擴張。

illicit trade翻譯