We'll put together a proposal, including detailed costings, free of charge.我们将免费拟一份提案，其中包括详细的成本估算。The performers have all offered their services free of charge.演员们都愿意免费出演。The leaflet is available free of charge from...

free of charge的音标：free of charge的英式发音音标为：[fri: ɔv tʃɑ:dʒ]free of charge的美式发音音标为：[fri ʌv tʃɑrdʒ]...

n.免费，分文不取，白，不取分文...