Drug dealers are the scum of the earth.

毒是社会的渣滓。

He went among the drug dealers in disguise.

他化装混到毒当中。

After she got involved with the drug dealers, she went in fear of her life.

她和那些毒有连以后就一直担心自会丢命。

The terrorists are working hand in glove with the drug traffickers.

恐怖分与毒相互勾结。