If it were not for some who had scars from tattoos, knives, or cigarette burns left by past experiences, you could never tell that these were drug addicts just from their appearance.
若不是有些人身上的刺青、刀疤、香菸燙出來的疤痕，寫著過去的歷史，光從他們的神情、長相，看不出任何吸毒的痕跡。