"If you get ten at once," explains one addict, "you have to carry the unused ones with you and worry about being arrested. And, because you can only use them once, safety needles are inconvenient. When you finish, you have to go buy more or exchange them."
「一次拿 10 支，用不完的帶在身上怕被抓；安全針具只能用一次，用完又得去買或換，也不方便，」一位毒癮患者說。