免費
free (of charge);gratis;complimentary
展覽會~參觀。Admission to the exhibition is free (of charge)./~服務free service/~公路toll-free highway/~教育 free education;compulsory education/~匿名檢測free and confidential test /~入場free admission;be admitted gratis /~試用free trial/~送貨free delivery/~午餐free lunch/~學校free school/~醫(yī)療free health (or medical) service;free medical treatment/~贈送complimentary(copies);with the compliment of;give (or be given) as a gift/~宣傳品free publicity/~贈閱報紙freesheet