劍橋詞典[ 可數(shù)名詞：有複數(shù)形式的名詞 ] (UK also needle bank) a place where people who use illegal drugs can go to exchange their old , dirty , or used needles for new, clean ones （使用非法毒品的人可以把弄髒的舊針頭換成乾淨的新針頭的）針頭換新処 Needle exchanges provide clean and sterile equipment to promote safer injecting and reduce the spread of blood-borne viruses . 針頭換新処提供乾淨消毒的設(shè)備，鼓勵安全注射，減少病毒通過血液傳播。 [ 不可數(shù)或單數(shù)名詞：沒有複數(shù)形式的名詞 ] the activity of exchanging needles in this way 針頭換新（的擧動） a needle exchange service 針頭換新服務(wù) 返回 needle exchange