Foreigners, racial minorities,

外国人少数民族
urban masses, the lower classes;

城市平民以及下层阶级
an immigrant nation like this one with a steady stream of

这样一个有着稳定外来人口的移民城市
strangers never lacks for dangerous others

从来不缺少危险的外来者
who are easily portrayed

他们很容易就扮演着这样的角色
as bringing their foreign destructive habits into American cities.

他们被认为将外国的恶习带到美国了
In fact, the history of American drug wars

事实上美国的反毒战争
can be told as a series of waves of racial and ethnic fears.

可以归结为一系列的种族恐慌潮
Prohibitions on smoking opium but not using liquid morphine,

禁止吸食鸦片但允许使用吗啡液体的禁令
which was the sort of practice of middle and upper class white women,

就是基于中上阶层白人妇女的实际状况
they used to take a little nip or other forms of morphine

一个世纪前反毒斗争初步成形的时候
to get through the day, that was continued to be fine

她们曾依靠吸食一小杯的吗啡