常見例句nounNeedle exchanges provide clean and sterile equipment to promote safer injecting and reduce the spread of blood-borne viruses. 針頭換新處提供干凈消毒的設(shè)備，鼓勵(lì)安全注射，減少病毒通過血液傳播。a needle exchange service 針頭換新服務(wù) 返回 needle exchange