静脉毒瘾者是TTV感染的高危人群；
The intravenous drug users are at high risk for TTV infection.
跟毒瘾者般，头发胡子不修，皮肤苍白，缺乏食欲。
They are like junkies, with unkempt hair and beards, bad skin and poor appetites.
唯有结合法律与教育，我们才能减少毒瘾者的人口。
Only by coupling law with education can we reduce the population of drug addicts.
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